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Finding the Fourth Proportional to 627,610.78, 866,099.64 and 341,132.41

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Solution

The fourth proportional to 627,610.78, 866,099.64 and 341,132.41 is: 470,760.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,610.78 : 866,099.64 = 341,132.41 : x
  2. Step 2: Convert to fraction form
    627,610.78/866,099.64 = 341,132.41/x
  3. Step 3: Cross multiply
    627,610.78x = 866,099.64 × 341,132.41
  4. Step 4: Simplify right side
    627,610.78x = 295,454,657,936.33
  5. Step 5: Solve for x
    x = 295,454,657,936.33/627,610.78
  6. Step 6: Final answer
    x = 470,760.97

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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.