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Finding the Fourth Proportional to 1,366.38, 2,049.33 and 441.93

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Solution

The fourth proportional to 1,366.38, 2,049.33 and 441.93 is: 662.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.38 : 2,049.33 = 441.93 : x
  2. Step 2: Convert to fraction form
    1,366.38/2,049.33 = 441.93/x
  3. Step 3: Cross multiply
    1,366.38x = 2,049.33 × 441.93
  4. Step 4: Simplify right side
    1,366.38x = 905,660.41
  5. Step 5: Solve for x
    x = 905,660.41/1,366.38
  6. Step 6: Final answer
    x = 662.82

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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.