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Finding the Fourth Proportional to 418,624.41, 627,144.29 and 247,333.88

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Solution

The fourth proportional to 418,624.41, 627,144.29 and 247,333.88 is: 370,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,624.41 : 627,144.29 = 247,333.88 : x
  2. Step 2: Convert to fraction form
    418,624.41/627,144.29 = 247,333.88/x
  3. Step 3: Cross multiply
    418,624.41x = 627,144.29 × 247,333.88
  4. Step 4: Simplify right side
    418,624.41x = 155,114,026,193.15
  5. Step 5: Solve for x
    x = 155,114,026,193.15/418,624.41
  6. Step 6: Final answer
    x = 370,532.68

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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.