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Finding the Fourth Proportional to 627,938.78, 866,545.63 and 341,456.36

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Solution

The fourth proportional to 627,938.78, 866,545.63 and 341,456.36 is: 471,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,938.78 : 866,545.63 = 341,456.36 : x
  2. Step 2: Convert to fraction form
    627,938.78/866,545.63 = 341,456.36/x
  3. Step 3: Cross multiply
    627,938.78x = 866,545.63 × 341,456.36
  4. Step 4: Simplify right side
    627,938.78x = 295,887,510,553.70
  5. Step 5: Solve for x
    x = 295,887,510,553.70/627,938.78
  6. Step 6: Final answer
    x = 471,204.39

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1.5x scale

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.