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Finding the Fourth Proportional to 892.66, 1,232.25 and 671.66

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Solution

The fourth proportional to 892.66, 1,232.25 and 671.66 is: 927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.66 : 1,232.25 = 671.66 : x
  2. Step 2: Convert to fraction form
    892.66/1,232.25 = 671.66/x
  3. Step 3: Cross multiply
    892.66x = 1,232.25 × 671.66
  4. Step 4: Simplify right side
    892.66x = 827,653.04
  5. Step 5: Solve for x
    x = 827,653.04/892.66
  6. Step 6: Final answer
    x = 927.18

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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.