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Finding the Fourth Proportional to 627,660.75, 866,172.42 and 341,180.83

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Solution

The fourth proportional to 627,660.75, 866,172.42 and 341,180.83 is: 470,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,660.75 : 866,172.42 = 341,180.83 : x
  2. Step 2: Convert to fraction form
    627,660.75/866,172.42 = 341,180.83/x
  3. Step 3: Cross multiply
    627,660.75x = 866,172.42 × 341,180.83
  4. Step 4: Simplify right side
    627,660.75x = 295,521,425,178.71
  5. Step 5: Solve for x
    x = 295,521,425,178.71/627,660.75
  6. Step 6: Final answer
    x = 470,829.86

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Double scale
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1.5x scale

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.