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Finding the Fourth Proportional to 1,046.73, 1,571.12 and 797.61

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Solution

The fourth proportional to 1,046.73, 1,571.12 and 797.61 is: 1,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.73 : 1,571.12 = 797.61 : x
  2. Step 2: Convert to fraction form
    1,046.73/1,571.12 = 797.61/x
  3. Step 3: Cross multiply
    1,046.73x = 1,571.12 × 797.61
  4. Step 4: Simplify right side
    1,046.73x = 1,253,145.92
  5. Step 5: Solve for x
    x = 1,253,145.92/1,046.73
  6. Step 6: Final answer
    x = 1,197.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.