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Finding the Fourth Proportional to 627,694.72, 866,212.56 and 341,197.76

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Solution

The fourth proportional to 627,694.72, 866,212.56 and 341,197.76 is: 470,849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,694.72 : 866,212.56 = 341,197.76 : x
  2. Step 2: Convert to fraction form
    627,694.72/866,212.56 = 341,197.76/x
  3. Step 3: Cross multiply
    627,694.72x = 866,212.56 × 341,197.76
  4. Step 4: Simplify right side
    627,694.72x = 295,549,785,155.87
  5. Step 5: Solve for x
    x = 295,549,785,155.87/627,694.72
  6. Step 6: Final answer
    x = 470,849.56

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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.