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Finding the Fourth Proportional to 996.24, 1,494.60 and 633.36

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Solution

The fourth proportional to 996.24, 1,494.60 and 633.36 is: 950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.24 : 1,494.60 = 633.36 : x
  2. Step 2: Convert to fraction form
    996.24/1,494.60 = 633.36/x
  3. Step 3: Cross multiply
    996.24x = 1,494.60 × 633.36
  4. Step 4: Simplify right side
    996.24x = 946,619.86
  5. Step 5: Solve for x
    x = 946,619.86/996.24
  6. Step 6: Final answer
    x = 950.19

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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.