Finding the Fourth Proportional to 2,157,579.18, 3,235,808.35 and 640,905.62
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Solution
The fourth proportional to 2,157,579.18, 3,235,808.35 and 640,905.62 is: 961,191.95
Step by Step Solution
- Step 1: Write the proportion equation
2,157,579.18 : 3,235,808.35 = 640,905.62 : x - Step 2: Convert to fraction form
2,157,579.18/3,235,808.35 = 640,905.62/x - Step 3: Cross multiply
2,157,579.18x = 3,235,808.35 × 640,905.62 - Step 4: Simplify right side
2,157,579.18x = 2,073,847,741,380.02 - Step 5: Solve for x
x = 2,073,847,741,380.02/2,157,579.18 - Step 6: Final answer
x = 961,191.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.