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Finding the Fourth Proportional to 409,654,313.90, 614,481,470.85 and 409,654,313.90

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Solution

The fourth proportional to 409,654,313.90, 614,481,470.85 and 409,654,313.90 is: 614,481,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,654,313.90 : 614,481,470.85 = 409,654,313.90 : x
  2. Step 2: Convert to fraction form
    409,654,313.90/614,481,470.85 = 409,654,313.90/x
  3. Step 3: Cross multiply
    409,654,313.90x = 614,481,470.85 × 409,654,313.90
  4. Step 4: Simplify right side
    409,654,313.90x = 251,724,985,345,319,584
  5. Step 5: Solve for x
    x = 251,724,985,345,319,584/409,654,313.90
  6. Step 6: Final answer
    x = 614,481,470.85

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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.