Sure.
Select the clip in the timeline, hit command-r to bring up the retime controls, and drag the right side to fit.
You may want to turn on Optical Flow and let the clips be analyzed for smoother motion. Sometime it works, sometimes it looks more warpy. To turn this on, select the retimed clip, find the little speedometer in the Viewer, click it, and choose Video Quality > Optical Flow (or Modify menu > Retime > Video Quality > Optical Flow)
Jeremy