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Finding the Fourth Proportional to 418,239.21, 627,006.15 and 181,403.52

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Solution

The fourth proportional to 418,239.21, 627,006.15 and 181,403.52 is: 271,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,239.21 : 627,006.15 = 181,403.52 : x
  2. Step 2: Convert to fraction form
    418,239.21/627,006.15 = 181,403.52/x
  3. Step 3: Cross multiply
    418,239.21x = 627,006.15 × 181,403.52
  4. Step 4: Simplify right side
    418,239.21x = 113,741,122,671.65
  5. Step 5: Solve for x
    x = 113,741,122,671.65/418,239.21
  6. Step 6: Final answer
    x = 271,952.32

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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.