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Finding the Fourth Proportional to 996.14, 1,374.50 and 576.54

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Solution

The fourth proportional to 996.14, 1,374.50 and 576.54 is: 795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.14 : 1,374.50 = 576.54 : x
  2. Step 2: Convert to fraction form
    996.14/1,374.50 = 576.54/x
  3. Step 3: Cross multiply
    996.14x = 1,374.50 × 576.54
  4. Step 4: Simplify right side
    996.14x = 792,451.35
  5. Step 5: Solve for x
    x = 792,451.35/996.14
  6. Step 6: Final answer
    x = 795.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.