A cylindrical tank has a tight$-$fitting piston that allows the volume of the tank to be changed. The tank originally contains air with a volume of $0\mathrm{.}100$ m$3$m$3$ at a pressure of $0\mathrm{.}580$ atmatm $.$ The piston is slowly pulled out until the volume of the gas is increased to $0\mathrm{.}430$ m$3$m$3.$ If the temperature remains constant, what is the final value of the pressure?