You hold a diversified portfolio consisting of a $$5,000$ investment in each of $40$ different common stocks. The portfolio beta is equal to $0\mathrm{.}5.$ You have decided to sell one of your stocks which has a beta equal to $1\mathrm{.}3$ for $$5,000.$ You plan to use the proceeds to purchase another stock which has a beta equal to $0\mathrm{.}6.$ What will be the beta of the new portfolio?