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Finding the Fourth Proportional to 627,977.70, 866,632.05 and 359,757.54

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Solution

The fourth proportional to 627,977.70, 866,632.05 and 359,757.54 is: 496,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,977.70 : 866,632.05 = 359,757.54 : x
  2. Step 2: Convert to fraction form
    627,977.70/866,632.05 = 359,757.54/x
  3. Step 3: Cross multiply
    627,977.70x = 866,632.05 × 359,757.54
  4. Step 4: Simplify right side
    627,977.70x = 311,777,414,393.16
  5. Step 5: Solve for x
    x = 311,777,414,393.16/627,977.70
  6. Step 6: Final answer
    x = 496,478.48

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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.