PORTFOLIO REQUIRED RETURN Suppose you are the money manager of a $4.31 million investment fund. The fund consists of four stocks with the following investments and betas Stock Investment $280,000 780,000 1,100,000 2,150,000 Beta 1.50 (0.50) 1.25 0.75 If the market's required rate o return is 12% and the risk-free rate is 7% what is the und's required rate of return? Do no round ntemediat answer to two decimal places. ca ulations. Round your 7.56