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Finding the Fourth Proportional to 1,463.92, 2,020.24 and 874.48

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Solution

The fourth proportional to 1,463.92, 2,020.24 and 874.48 is: 1,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.92 : 2,020.24 = 874.48 : x
  2. Step 2: Convert to fraction form
    1,463.92/2,020.24 = 874.48/x
  3. Step 3: Cross multiply
    1,463.92x = 2,020.24 × 874.48
  4. Step 4: Simplify right side
    1,463.92x = 1,766,659.48
  5. Step 5: Solve for x
    x = 1,766,659.48/1,463.92
  6. Step 6: Final answer
    x = 1,206.80

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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.