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Finding the Fourth Proportional to 627,624.68, 866,539.14 and 482,171.41

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Solution

The fourth proportional to 627,624.68, 866,539.14 and 482,171.41 is: 665,716.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,624.68 : 866,539.14 = 482,171.41 : x
  2. Step 2: Convert to fraction form
    627,624.68/866,539.14 = 482,171.41/x
  3. Step 3: Cross multiply
    627,624.68x = 866,539.14 × 482,171.41
  4. Step 4: Simplify right side
    627,624.68x = 417,820,396,787.64
  5. Step 5: Solve for x
    x = 417,820,396,787.64/627,624.68
  6. Step 6: Final answer
    x = 665,716.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.