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Finding the Fourth Proportional to 487,156,820.40, 730,735,230.60 and 487,156,820.40

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Solution

The fourth proportional to 487,156,820.40, 730,735,230.60 and 487,156,820.40 is: 730,735,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,156,820.40 : 730,735,230.60 = 487,156,820.40 : x
  2. Step 2: Convert to fraction form
    487,156,820.40/730,735,230.60 = 487,156,820.40/x
  3. Step 3: Cross multiply
    487,156,820.40x = 730,735,230.60 × 487,156,820.40
  4. Step 4: Simplify right side
    487,156,820.40x = 355,982,651,493,356,800
  5. Step 5: Solve for x
    x = 355,982,651,493,356,800/487,156,820.40
  6. Step 6: Final answer
    x = 730,735,230.60

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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.