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Finding the Fourth Proportional to 418,590.60, 627,871.68 and 181,933.26

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Solution

The fourth proportional to 418,590.60, 627,871.68 and 181,933.26 is: 272,893.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,590.60 : 627,871.68 = 181,933.26 : x
  2. Step 2: Convert to fraction form
    418,590.60/627,871.68 = 181,933.26/x
  3. Step 3: Cross multiply
    418,590.60x = 627,871.68 × 181,933.26
  4. Step 4: Simplify right side
    418,590.60x = 114,230,741,604.08
  5. Step 5: Solve for x
    x = 114,230,741,604.08/418,590.60
  6. Step 6: Final answer
    x = 272,893.71

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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.