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Finding the Fourth Proportional to 627,959.66, 866,558.17 and 356,045.94

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Solution

The fourth proportional to 627,959.66, 866,558.17 and 356,045.94 is: 491,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,959.66 : 866,558.17 = 356,045.94 : x
  2. Step 2: Convert to fraction form
    627,959.66/866,558.17 = 356,045.94/x
  3. Step 3: Cross multiply
    627,959.66x = 866,558.17 × 356,045.94
  4. Step 4: Simplify right side
    627,959.66x = 308,534,517,211.57
  5. Step 5: Solve for x
    x = 308,534,517,211.57/627,959.66
  6. Step 6: Final answer
    x = 491,328.56

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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.