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Finding the Fourth Proportional to 1,262.28, 1,893.20 and 337.92

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Solution

The fourth proportional to 1,262.28, 1,893.20 and 337.92 is: 506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.28 : 1,893.20 = 337.92 : x
  2. Step 2: Convert to fraction form
    1,262.28/1,893.20 = 337.92/x
  3. Step 3: Cross multiply
    1,262.28x = 1,893.20 × 337.92
  4. Step 4: Simplify right side
    1,262.28x = 639,750.14
  5. Step 5: Solve for x
    x = 639,750.14/1,262.28
  6. Step 6: Final answer
    x = 506.82

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