Using proportions, it is found that the swing set at Marquette Park is 680m long.
A proportion is a fraction of total amount, and the measures are related using a rule of three.
In this problem, each two centimeters of the model corresponds to one meter of the park, and we want to find how many meters will correspond to 1360 cm.
The rule of three is:
2 cm - 1 m
1360 cm - x m
Applying cross multiplication:
[tex]2x = 1360[/tex]
[tex]x = \frac{1360}{2}[/tex]
[tex]x = 680[/tex]
The swing set at Marquette Park is 680m long.
You can learn more about proportions at https://brainly.com/question/24372153