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Finding the Fourth Proportional to 996.26, 1,491.96 and 704.66

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Solution

The fourth proportional to 996.26, 1,491.96 and 704.66 is: 1,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.26 : 1,491.96 = 704.66 : x
  2. Step 2: Convert to fraction form
    996.26/1,491.96 = 704.66/x
  3. Step 3: Cross multiply
    996.26x = 1,491.96 × 704.66
  4. Step 4: Simplify right side
    996.26x = 1,051,324.53
  5. Step 5: Solve for x
    x = 1,051,324.53/996.26
  6. Step 6: Final answer
    x = 1,055.27

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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.