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Finding the Fourth Proportional to 252,227,280.40, 378,340,920.60 and 252,227,280.40

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Solution

The fourth proportional to 252,227,280.40, 378,340,920.60 and 252,227,280.40 is: 378,340,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,227,280.40 : 378,340,920.60 = 252,227,280.40 : x
  2. Step 2: Convert to fraction form
    252,227,280.40/378,340,920.60 = 252,227,280.40/x
  3. Step 3: Cross multiply
    252,227,280.40x = 378,340,920.60 × 252,227,280.40
  4. Step 4: Simplify right side
    252,227,280.40x = 95,427,901,466,970,352
  5. Step 5: Solve for x
    x = 95,427,901,466,970,352/252,227,280.40
  6. Step 6: Final answer
    x = 378,340,920.60

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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.