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Finding the Fourth Proportional to 996.48, 1,494.75 and 824.49

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Solution

The fourth proportional to 996.48, 1,494.75 and 824.49 is: 1,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.48 : 1,494.75 = 824.49 : x
  2. Step 2: Convert to fraction form
    996.48/1,494.75 = 824.49/x
  3. Step 3: Cross multiply
    996.48x = 1,494.75 × 824.49
  4. Step 4: Simplify right side
    996.48x = 1,232,406.43
  5. Step 5: Solve for x
    x = 1,232,406.43/996.48
  6. Step 6: Final answer
    x = 1,236.76

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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.