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Finding the Fourth Proportional to 627,666.57, 866,596.93 and 482,213.25

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Solution

The fourth proportional to 627,666.57, 866,596.93 and 482,213.25 is: 665,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,666.57 : 866,596.93 = 482,213.25 : x
  2. Step 2: Convert to fraction form
    627,666.57/866,596.93 = 482,213.25/x
  3. Step 3: Cross multiply
    627,666.57x = 866,596.93 × 482,213.25
  4. Step 4: Simplify right side
    627,666.57x = 417,884,520,849.79
  5. Step 5: Solve for x
    x = 417,884,520,849.79/627,666.57
  6. Step 6: Final answer
    x = 665,774.70

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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.