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Finding the Fourth Proportional to 627,765.64, 866,326.44 and 341,286.82

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Solution

The fourth proportional to 627,765.64, 866,326.44 and 341,286.82 is: 470,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,765.64 : 866,326.44 = 341,286.82 : x
  2. Step 2: Convert to fraction form
    627,765.64/866,326.44 = 341,286.82/x
  3. Step 3: Cross multiply
    627,765.64x = 866,326.44 × 341,286.82
  4. Step 4: Simplify right side
    627,765.64x = 295,665,795,789.52
  5. Step 5: Solve for x
    x = 295,665,795,789.52/627,765.64
  6. Step 6: Final answer
    x = 470,981.17

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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.