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 May 9th, 2016, 11:36 AM #1 Newbie   Joined: Feb 2012 From: Central Florida Posts: 10 Thanks: 0 average percent multiplier? If I have 3 fixed rate Annuity or Bank CD accts. The 1st acct a balance of 100,000 earns an annual percent yield of (APY) 3.25% (0.0325). The 2nd acct a balance of 100,000 earns 3.0% (APY). The 3rd acct a balance of 300,000 earns 3.3% (APY). They all have a 10yr maturity date. How would I determine what percent I could multiply the whole balance total of all 3 accts (500,000) to find my yearly earnings (?) without having to do all 3 separate and add them up. May 9th, 2016, 11:48 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,746 Thanks: 2133 The method you've mentioned is essentially the only way. May 20th, 2016, 02:00 PM #3 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 You could find an "average" interest rate. Since the 3.3% is for three times as much money as the others, "weight" the average: (3.25+ 3+ 3(3.3))/(1+ 1+ 3)=16.15/5 = 3.23. Then Find 3.23% of $500,000: 0.0323(500,000)=$16150. However, that is exactly the same work as finding 3.25% of $100,000=$3250, 3% of $100,00=$3000, 3.3% of 300,000= $9900.$3250+ $3000+$9900= \$16150. Tags average, multiplier, percent Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post Gang Elementary Math 10 November 5th, 2015 10:46 AM Caesar95 Calculus 2 May 2nd, 2015 08:04 AM Tartaglia Economics 0 September 29th, 2013 01:22 PM trey01 Applied Math 2 March 25th, 2012 07:14 AM roonaldo17 Calculus 0 November 16th, 2008 11:27 AM

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