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Finding the Fourth Proportional to 472,392,906.30, 708,589,359.45 and 469,523,124.90

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Solution

The fourth proportional to 472,392,906.30, 708,589,359.45 and 469,523,124.90 is: 704,284,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,906.30 : 708,589,359.45 = 469,523,124.90 : x
  2. Step 2: Convert to fraction form
    472,392,906.30/708,589,359.45 = 469,523,124.90/x
  3. Step 3: Cross multiply
    472,392,906.30x = 708,589,359.45 × 469,523,124.90
  4. Step 4: Simplify right side
    472,392,906.30x = 332,699,090,319,853,376
  5. Step 5: Solve for x
    x = 332,699,090,319,853,376/472,392,906.30
  6. Step 6: Final answer
    x = 704,284,687.35

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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.