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Finding the Fourth Proportional to 500,866,597.71, 750,947,861.93 and 220,614,507.90

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Solution

The fourth proportional to 500,866,597.71, 750,947,861.93 and 220,614,507.90 is: 330,766,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,866,597.71 : 750,947,861.93 = 220,614,507.90 : x
  2. Step 2: Convert to fraction form
    500,866,597.71/750,947,861.93 = 220,614,507.90/x
  3. Step 3: Cross multiply
    500,866,597.71x = 750,947,861.93 × 220,614,507.90
  4. Step 4: Simplify right side
    500,866,597.71x = 165,669,993,017,141,024
  5. Step 5: Solve for x
    x = 165,669,993,017,141,024/500,866,597.71
  6. Step 6: Final answer
    x = 330,766,702.70

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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.