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Finding the Fourth Proportional to 468,892.64, 647,033.59 and 275,279.96

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Solution

The fourth proportional to 468,892.64, 647,033.59 and 275,279.96 is: 379,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,892.64 : 647,033.59 = 275,279.96 : x
  2. Step 2: Convert to fraction form
    468,892.64/647,033.59 = 275,279.96/x
  3. Step 3: Cross multiply
    468,892.64x = 647,033.59 × 275,279.96
  4. Step 4: Simplify right side
    468,892.64x = 178,115,380,773.86
  5. Step 5: Solve for x
    x = 178,115,380,773.86/468,892.64
  6. Step 6: Final answer
    x = 379,863.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.