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Finding the Fourth Proportional to 627,770.94, 866,340.99 and 341,310.78

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Solution

The fourth proportional to 627,770.94, 866,340.99 and 341,310.78 is: 471,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,770.94 : 866,340.99 = 341,310.78 : x
  2. Step 2: Convert to fraction form
    627,770.94/866,340.99 = 341,310.78/x
  3. Step 3: Cross multiply
    627,770.94x = 866,340.99 × 341,310.78
  4. Step 4: Simplify right side
    627,770.94x = 295,691,519,042.87
  5. Step 5: Solve for x
    x = 295,691,519,042.87/627,770.94
  6. Step 6: Final answer
    x = 471,018.17

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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.