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Finding the Fourth Proportional to 627,866.82, 866,432.34 and 341,387.14

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Solution

The fourth proportional to 627,866.82, 866,432.34 and 341,387.14 is: 471,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,866.82 : 866,432.34 = 341,387.14 : x
  2. Step 2: Convert to fraction form
    627,866.82/866,432.34 = 341,387.14/x
  3. Step 3: Cross multiply
    627,866.82x = 866,432.34 × 341,387.14
  4. Step 4: Simplify right side
    627,866.82x = 295,788,858,556.11
  5. Step 5: Solve for x
    x = 295,788,858,556.11/627,866.82
  6. Step 6: Final answer
    x = 471,101.27

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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.