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Finding the Fourth Proportional to 1,044.68, 1,441.25 and 671.61

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Solution

The fourth proportional to 1,044.68, 1,441.25 and 671.61 is: 926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.68 : 1,441.25 = 671.61 : x
  2. Step 2: Convert to fraction form
    1,044.68/1,441.25 = 671.61/x
  3. Step 3: Cross multiply
    1,044.68x = 1,441.25 × 671.61
  4. Step 4: Simplify right side
    1,044.68x = 967,959.59
  5. Step 5: Solve for x
    x = 967,959.59/1,044.68
  6. Step 6: Final answer
    x = 926.56

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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.