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Finding the Fourth Proportional to 1,201.64, 1,802.46 and 1,169.24

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Solution

The fourth proportional to 1,201.64, 1,802.46 and 1,169.24 is: 1,753.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.64 : 1,802.46 = 1,169.24 : x
  2. Step 2: Convert to fraction form
    1,201.64/1,802.46 = 1,169.24/x
  3. Step 3: Cross multiply
    1,201.64x = 1,802.46 × 1,169.24
  4. Step 4: Simplify right side
    1,201.64x = 2,107,508.33
  5. Step 5: Solve for x
    x = 2,107,508.33/1,201.64
  6. Step 6: Final answer
    x = 1,753.86

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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.