Will a 5x5 bolt pattern fit a 5x4.5?

No, a 5x5 bolt pattern will not fit a 5x4.5 bolt pattern. The numbers represent the number of bolt holes and the distance between them; in this case, the 5x5 has a diameter of 5 inches and the 5x4.5 has a diameter of 4.5 inches. Therefore, the spacing and hole alignment will not match, making them incompatible.