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Finding the Fourth Proportional to 627,766.38, 866,323.08 and 341,286.66

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Solution

The fourth proportional to 627,766.38, 866,323.08 and 341,286.66 is: 470,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,766.38 : 866,323.08 = 341,286.66 : x
  2. Step 2: Convert to fraction form
    627,766.38/866,323.08 = 341,286.66/x
  3. Step 3: Cross multiply
    627,766.38x = 866,323.08 × 341,286.66
  4. Step 4: Simplify right side
    627,766.38x = 295,664,510,454.11
  5. Step 5: Solve for x
    x = 295,664,510,454.11/627,766.38
  6. Step 6: Final answer
    x = 470,978.57

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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.