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Finding the Fourth Proportional to 996.89, 1,374.29 and 701.24

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Solution

The fourth proportional to 996.89, 1,374.29 and 701.24 is: 966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.89 : 1,374.29 = 701.24 : x
  2. Step 2: Convert to fraction form
    996.89/1,374.29 = 701.24/x
  3. Step 3: Cross multiply
    996.89x = 1,374.29 × 701.24
  4. Step 4: Simplify right side
    996.89x = 963,709.98
  5. Step 5: Solve for x
    x = 963,709.98/996.89
  6. Step 6: Final answer
    x = 966.71

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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.