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Finding the Fourth Proportional to 1,169.64, 1,754.89 and 552.88

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Solution

The fourth proportional to 1,169.64, 1,754.89 and 552.88 is: 829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.64 : 1,754.89 = 552.88 : x
  2. Step 2: Convert to fraction form
    1,169.64/1,754.89 = 552.88/x
  3. Step 3: Cross multiply
    1,169.64x = 1,754.89 × 552.88
  4. Step 4: Simplify right side
    1,169.64x = 970,243.58
  5. Step 5: Solve for x
    x = 970,243.58/1,169.64
  6. Step 6: Final answer
    x = 829.52

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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.