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Finding the Fourth Proportional to 418,591.60, 627,873.18 and 181,934.26

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Solution

The fourth proportional to 418,591.60, 627,873.18 and 181,934.26 is: 272,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,591.60 : 627,873.18 = 181,934.26 : x
  2. Step 2: Convert to fraction form
    418,591.60/627,873.18 = 181,934.26/x
  3. Step 3: Cross multiply
    418,591.60x = 627,873.18 × 181,934.26
  4. Step 4: Simplify right side
    418,591.60x = 114,231,642,377.15
  5. Step 5: Solve for x
    x = 114,231,642,377.15/418,591.60
  6. Step 6: Final answer
    x = 272,895.21

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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.