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Finding the Fourth Proportional to 1,609.92, 2,411.07 and 1,377.48

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Solution

The fourth proportional to 1,609.92, 2,411.07 and 1,377.48 is: 2,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.92 : 2,411.07 = 1,377.48 : x
  2. Step 2: Convert to fraction form
    1,609.92/2,411.07 = 1,377.48/x
  3. Step 3: Cross multiply
    1,609.92x = 2,411.07 × 1,377.48
  4. Step 4: Simplify right side
    1,609.92x = 3,321,200.70
  5. Step 5: Solve for x
    x = 3,321,200.70/1,609.92
  6. Step 6: Final answer
    x = 2,062.96

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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.