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Finding the Fourth Proportional to 627,772.44, 866,343.06 and 341,311.80

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Solution

The fourth proportional to 627,772.44, 866,343.06 and 341,311.80 is: 471,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,772.44 : 866,343.06 = 341,311.80 : x
  2. Step 2: Convert to fraction form
    627,772.44/866,343.06 = 341,311.80/x
  3. Step 3: Cross multiply
    627,772.44x = 866,343.06 × 341,311.80
  4. Step 4: Simplify right side
    627,772.44x = 295,693,109,226.11
  5. Step 5: Solve for x
    x = 295,693,109,226.11/627,772.44
  6. Step 6: Final answer
    x = 471,019.58

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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.