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Finding the Fourth Proportional to 1,183.14, 1,774.26 and 696.33

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Solution

The fourth proportional to 1,183.14, 1,774.26 and 696.33 is: 1,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.14 : 1,774.26 = 696.33 : x
  2. Step 2: Convert to fraction form
    1,183.14/1,774.26 = 696.33/x
  3. Step 3: Cross multiply
    1,183.14x = 1,774.26 × 696.33
  4. Step 4: Simplify right side
    1,183.14x = 1,235,470.47
  5. Step 5: Solve for x
    x = 1,235,470.47/1,183.14
  6. Step 6: Final answer
    x = 1,044.23

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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.