By applying the correspondent change of scale, we will see that Earth should be placed 214.8m away from the scale sun.
The real radius of the Sun is:
R = 696,340 km
And the radius of the scale Sun is 1m, then we have the relation:
1m = 696,340 km
1 = (1m/696,340 km)
Now, the real distance between the Sun and Earth is:
d = 149,600,000 km
If we apply the change of scale we have above, we will get:
d = 149,600,000 km*(1m/696,340 km) = 214.8m
So the Earth should be placed at 214.8m of the ball that represents the sun.
If you want to learn more about changes of scale, you can read:
https://brainly.com/question/15891755