We don't have this one around here, but we have one about half of its (linear) size, so 1/8 of the weight. It already weights more than 3 hamburgers (unless they are like the one on the photo around the comments here).
Say what you will about the American education system, but I know it’s a 1/4 lb burgers because you could get close(ish) to 200 lbs of meat from a deer if you were lucky in Oregon Trail.