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Finding the Fourth Proportional to 996.40, 1,497.24 and 534.52

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Solution

The fourth proportional to 996.40, 1,497.24 and 534.52 is: 803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.40 : 1,497.24 = 534.52 : x
  2. Step 2: Convert to fraction form
    996.40/1,497.24 = 534.52/x
  3. Step 3: Cross multiply
    996.40x = 1,497.24 × 534.52
  4. Step 4: Simplify right side
    996.40x = 800,304.72
  5. Step 5: Solve for x
    x = 800,304.72/996.40
  6. Step 6: Final answer
    x = 803.20

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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.