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Finding the Fourth Proportional to 323,553,635.70, 485,330,453.55 and 269,745,234.45

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Solution

The fourth proportional to 323,553,635.70, 485,330,453.55 and 269,745,234.45 is: 404,617,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,553,635.70 : 485,330,453.55 = 269,745,234.45 : x
  2. Step 2: Convert to fraction form
    323,553,635.70/485,330,453.55 = 269,745,234.45/x
  3. Step 3: Cross multiply
    323,553,635.70x = 485,330,453.55 × 269,745,234.45
  4. Step 4: Simplify right side
    323,553,635.70x = 130,915,576,978,569,584
  5. Step 5: Solve for x
    x = 130,915,576,978,569,584/323,553,635.70
  6. Step 6: Final answer
    x = 404,617,851.68

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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.