Solve for the unknown interest rate in each of the following. $($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

$\backslash$table$[[$Present Value,Years,Interest Rate,Future Value$],[340,5,\%,465],[460,19,,1,752],[49,000,20,,303,726],[48,261,30,,1,485,098$