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Finding the Fourth Proportional to 418,299.62, 627,096.80 and 181,463.72

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Solution

The fourth proportional to 418,299.62, 627,096.80 and 181,463.72 is: 272,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,299.62 : 627,096.80 = 181,463.72 : x
  2. Step 2: Convert to fraction form
    418,299.62/627,096.80 = 181,463.72/x
  3. Step 3: Cross multiply
    418,299.62x = 627,096.80 × 181,463.72
  4. Step 4: Simplify right side
    418,299.62x = 113,795,315,446.27
  5. Step 5: Solve for x
    x = 113,795,315,446.27/418,299.62
  6. Step 6: Final answer
    x = 272,042.60

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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.