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Finding the Fourth Proportional to 996.23, 1,493.39 and 502.31

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Solution

The fourth proportional to 996.23, 1,493.39 and 502.31 is: 752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.23 : 1,493.39 = 502.31 : x
  2. Step 2: Convert to fraction form
    996.23/1,493.39 = 502.31/x
  3. Step 3: Cross multiply
    996.23x = 1,493.39 × 502.31
  4. Step 4: Simplify right side
    996.23x = 750,138.52
  5. Step 5: Solve for x
    x = 750,138.52/996.23
  6. Step 6: Final answer
    x = 752.98

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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.