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Finding the Fourth Proportional to 1,546.65, 2,134.17 and 874.44

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Solution

The fourth proportional to 1,546.65, 2,134.17 and 874.44 is: 1,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.65 : 2,134.17 = 874.44 : x
  2. Step 2: Convert to fraction form
    1,546.65/2,134.17 = 874.44/x
  3. Step 3: Cross multiply
    1,546.65x = 2,134.17 × 874.44
  4. Step 4: Simplify right side
    1,546.65x = 1,866,203.61
  5. Step 5: Solve for x
    x = 1,866,203.61/1,546.65
  6. Step 6: Final answer
    x = 1,206.61

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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.