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Finding the Fourth Proportional to 474,984,007.90, 712,476,011.85 and 474,984,007.90

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Solution

The fourth proportional to 474,984,007.90, 712,476,011.85 and 474,984,007.90 is: 712,476,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,984,007.90 : 712,476,011.85 = 474,984,007.90 : x
  2. Step 2: Convert to fraction form
    474,984,007.90/712,476,011.85 = 474,984,007.90/x
  3. Step 3: Cross multiply
    474,984,007.90x = 712,476,011.85 × 474,984,007.90
  4. Step 4: Simplify right side
    474,984,007.90x = 338,414,711,641,120,896
  5. Step 5: Solve for x
    x = 338,414,711,641,120,896/474,984,007.90
  6. Step 6: Final answer
    x = 712,476,011.85

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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.