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Finding the Fourth Proportional to 627,940.96, 866,560.08 and 341,460.88

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Solution

The fourth proportional to 627,940.96, 866,560.08 and 341,460.88 is: 471,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,940.96 : 866,560.08 = 341,460.88 : x
  2. Step 2: Convert to fraction form
    627,940.96/866,560.08 = 341,460.88/x
  3. Step 3: Cross multiply
    627,940.96x = 866,560.08 × 341,460.88
  4. Step 4: Simplify right side
    627,940.96x = 295,896,367,489.67
  5. Step 5: Solve for x
    x = 295,896,367,489.67/627,940.96
  6. Step 6: Final answer
    x = 471,216.86

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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.