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Finding the Fourth Proportional to 418,532.64, 627,108.64 and 241,188.64

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Solution

The fourth proportional to 418,532.64, 627,108.64 and 241,188.64 is: 361,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,532.64 : 627,108.64 = 241,188.64 : x
  2. Step 2: Convert to fraction form
    418,532.64/627,108.64 = 241,188.64/x
  3. Step 3: Cross multiply
    418,532.64x = 627,108.64 × 241,188.64
  4. Step 4: Simplify right side
    418,532.64x = 151,251,480,013.85
  5. Step 5: Solve for x
    x = 151,251,480,013.85/418,532.64
  6. Step 6: Final answer
    x = 361,385.15

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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.