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Calculating Interest Rate

Calculating Interest Rate. Find the interest rate implied by the following combinations of
present and future values:

Present Value Years Future Value
$400 11 $648
$183 4 $249
$300 7 $300

Please show me how you calculated the problem so I can do it for my paper. These are not the actual figures that I will use in my paper but will assist me in how to do it right. Thanks

Solution Preview

FV = PV (1+interest Rate)^years

648 = 400* (1+i)^11

(648/400) = ...