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Finding the Fourth Proportional to 474,984,138.90, 712,476,208.35 and 474,984,138.90

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Solution

The fourth proportional to 474,984,138.90, 712,476,208.35 and 474,984,138.90 is: 712,476,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,984,138.90 : 712,476,208.35 = 474,984,138.90 : x
  2. Step 2: Convert to fraction form
    474,984,138.90/712,476,208.35 = 474,984,138.90/x
  3. Step 3: Cross multiply
    474,984,138.90x = 712,476,208.35 × 474,984,138.90
  4. Step 4: Simplify right side
    474,984,138.90x = 338,414,898,309,861,760
  5. Step 5: Solve for x
    x = 338,414,898,309,861,760/474,984,138.90
  6. Step 6: Final answer
    x = 712,476,208.35

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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.