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Finding the Fourth Proportional to 996.92, 1,486.59 and 927.66

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Solution

The fourth proportional to 996.92, 1,486.59 and 927.66 is: 1,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.92 : 1,486.59 = 927.66 : x
  2. Step 2: Convert to fraction form
    996.92/1,486.59 = 927.66/x
  3. Step 3: Cross multiply
    996.92x = 1,486.59 × 927.66
  4. Step 4: Simplify right side
    996.92x = 1,379,050.08
  5. Step 5: Solve for x
    x = 1,379,050.08/996.92
  6. Step 6: Final answer
    x = 1,383.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.