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Finding the Fourth Proportional to 472,394,348.70, 708,591,523.05 and 355,996,959.90

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Solution

The fourth proportional to 472,394,348.70, 708,591,523.05 and 355,996,959.90 is: 533,995,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,348.70 : 708,591,523.05 = 355,996,959.90 : x
  2. Step 2: Convert to fraction form
    472,394,348.70/708,591,523.05 = 355,996,959.90/x
  3. Step 3: Cross multiply
    472,394,348.70x = 708,591,523.05 × 355,996,959.90
  4. Step 4: Simplify right side
    472,394,348.70x = 252,256,428,016,710,752
  5. Step 5: Solve for x
    x = 252,256,428,016,710,752/472,394,348.70
  6. Step 6: Final answer
    x = 533,995,439.85

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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.