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Finding the Fourth Proportional to 487,156,783.90, 730,735,175.85 and 487,156,783.90

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Solution

The fourth proportional to 487,156,783.90, 730,735,175.85 and 487,156,783.90 is: 730,735,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,156,783.90 : 730,735,175.85 = 487,156,783.90 : x
  2. Step 2: Convert to fraction form
    487,156,783.90/730,735,175.85 = 487,156,783.90/x
  3. Step 3: Cross multiply
    487,156,783.90x = 730,735,175.85 × 487,156,783.90
  4. Step 4: Simplify right side
    487,156,783.90x = 355,982,598,149,686,912
  5. Step 5: Solve for x
    x = 355,982,598,149,686,912/487,156,783.90
  6. Step 6: Final answer
    x = 730,735,175.85

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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.