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Finding the Fourth Proportional to 252,753,632.40, 378,563,578.20 and 252,753,632.40

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Solution

The fourth proportional to 252,753,632.40, 378,563,578.20 and 252,753,632.40 is: 378,563,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,753,632.40 : 378,563,578.20 = 252,753,632.40 : x
  2. Step 2: Convert to fraction form
    252,753,632.40/378,563,578.20 = 252,753,632.40/x
  3. Step 3: Cross multiply
    252,753,632.40x = 378,563,578.20 × 252,753,632.40
  4. Step 4: Simplify right side
    252,753,632.40x = 95,683,319,484,391,456
  5. Step 5: Solve for x
    x = 95,683,319,484,391,456/252,753,632.40
  6. Step 6: Final answer
    x = 378,563,578.20

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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.