You have a component that is getting old and less reliable so you want to back it up. You have several old versions of the component which you can use as backups. The main component has a reliability of 0.70 and the three old components you are using for backup have reliabilities of 0.59, 0.61, and 0.60 respectively. What is the reliability of this component with backups included? Answer to 3 decimal places.