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Finding the Fourth Proportional to 627,878.28, 866,470.04 and 341,399.10

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Solution

The fourth proportional to 627,878.28, 866,470.04 and 341,399.10 is: 471,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,878.28 : 866,470.04 = 341,399.10 : x
  2. Step 2: Convert to fraction form
    627,878.28/866,470.04 = 341,399.10/x
  3. Step 3: Cross multiply
    627,878.28x = 866,470.04 × 341,399.10
  4. Step 4: Simplify right side
    627,878.28x = 295,812,091,832.96
  5. Step 5: Solve for x
    x = 295,812,091,832.96/627,878.28
  6. Step 6: Final answer
    x = 471,129.68

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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.