You can only figure out how many meters to catch the rabbit.
According to "the distance between the dog running 4 steps and the rabbit running 9 steps", it can be assumed that each step of the dog is 9x meters and each step of the rabbit is 4x meters.
According to "dogs run five steps and rabbits run eight steps", at the same time, when dogs run 5*9x meters = =45x meters, rabbits run 8 * 4x = 32x meters.
It can be concluded that the speed ratio of dogs and rabbits is 45x: 32x = 45: 32.
According to "the hound found a rabbit running 26 meters ahead", the distance between the dog and the rabbit is 26 meters, and the difference between them is 45-32 = 13. Now, what is the distance between 45 copies of the dog, that is, 26 ÷ (45-32) × 45 = 90 meters.
Arithmetic method
The speed ratio of dogs and rabbits is 5× 9: 4× 8 = 45: 32.
So the dog ran 26 ÷ (45-32) × 45 = 90 meters and caught the rabbit.