We are given
The scale model of a building is 5.4 ft tall of the original building is 810 meters tall
so, we get
5.4 ft = 810 meters
now, we can find for 1ft
so, we can divide both sides by 5.4
![(5.4)/(5.4) ft=(810)/(5.4) meters](https://img.qammunity.org/2019/formulas/mathematics/high-school/o99spe504wnm3l9wpza4q6wof0jn6q6zt4.png)
![1 ft=150 meters](https://img.qammunity.org/2019/formulas/mathematics/high-school/vd9j6sotzox8ts6ia930ac3pson93mdc9m.png)
So, we got scale as
The scale model of a building is 1 ft tall of the original building is 150 meters tall.......Answer