Quantitative Problem: You are holding a portfolio with the following investments and betas: Stock Dollar investment Beta A $250,000 1.2 B 100,000 1.6 C 300,000 0.65 D 350,000 -0.35 Total investment $1,000,000 The market's required return is 10% and the risk-free rate is 4%. What is the portfolio's required return? Round your answer to 3 decimal places. Do not round intermediate calculations. %