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Finding the Fourth Proportional to 996.33, 1,494.42 and 338.27

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Solution

The fourth proportional to 996.33, 1,494.42 and 338.27 is: 507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.33 : 1,494.42 = 338.27 : x
  2. Step 2: Convert to fraction form
    996.33/1,494.42 = 338.27/x
  3. Step 3: Cross multiply
    996.33x = 1,494.42 × 338.27
  4. Step 4: Simplify right side
    996.33x = 505,509.98
  5. Step 5: Solve for x
    x = 505,509.98/996.33
  6. Step 6: Final answer
    x = 507.37

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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.