Quantitative Problem: You are holding a portfolio with the following investments and betas: Stock Beta $200,000 100,000 300,000 400,000 1,000,000 1.2 1.7 0.75 -0.3 Total investment The market's required return s 9% and therisk-free rate is 3%. what is the portfolio calculations. s required return? Round your answer to 3 decimal places. Do not round intermediate