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Finding the Fourth Proportional to 418,239.96, 627,007.28 and 181,404.27

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Solution

The fourth proportional to 418,239.96, 627,007.28 and 181,404.27 is: 271,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,239.96 : 627,007.28 = 181,404.27 : x
  2. Step 2: Convert to fraction form
    418,239.96/627,007.28 = 181,404.27/x
  3. Step 3: Cross multiply
    418,239.96x = 627,007.28 × 181,404.27
  4. Step 4: Simplify right side
    418,239.96x = 113,741,797,006.06
  5. Step 5: Solve for x
    x = 113,741,797,006.06/418,239.96
  6. Step 6: Final answer
    x = 271,953.44

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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.