First, we need to find the radius of the cone. The diameter is given as 434 meters, so the radius is half of that:
radius = 434/2 = 217 meters
Next, we can use the formula for the volume of a cone:
V = (1/3)πr^2h
where r is the radius and h is the height.
Plugging in the values we have:
V = (1/3)π(217)^2(418)
V ≈ 41,796,778.5
Rounding to the nearest hundred thousand, we get:
V ≈ 41,800,000
Therefore, the volume of the cone is approximately 41,800,000 cubic meters.