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Finding the Fourth Proportional to 892.23, 1,337.47 and 372.59

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Solution

The fourth proportional to 892.23, 1,337.47 and 372.59 is: 558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.23 : 1,337.47 = 372.59 : x
  2. Step 2: Convert to fraction form
    892.23/1,337.47 = 372.59/x
  3. Step 3: Cross multiply
    892.23x = 1,337.47 × 372.59
  4. Step 4: Simplify right side
    892.23x = 498,323.73
  5. Step 5: Solve for x
    x = 498,323.73/892.23
  6. Step 6: Final answer
    x = 558.52

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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.