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Finding the Fourth Proportional to 627,876.49, 866,480.39 and 341,398.51

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Solution

The fourth proportional to 627,876.49, 866,480.39 and 341,398.51 is: 471,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,876.49 : 866,480.39 = 341,398.51 : x
  2. Step 2: Convert to fraction form
    627,876.49/866,480.39 = 341,398.51/x
  3. Step 3: Cross multiply
    627,876.49x = 866,480.39 × 341,398.51
  4. Step 4: Simplify right side
    627,876.49x = 295,815,112,383.23
  5. Step 5: Solve for x
    x = 295,815,112,383.23/627,876.49
  6. Step 6: Final answer
    x = 471,135.83

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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.