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Finding the Fourth Proportional to 1,169.16, 1,753.44 and 552.70

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Solution

The fourth proportional to 1,169.16, 1,753.44 and 552.70 is: 828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.16 : 1,753.44 = 552.70 : x
  2. Step 2: Convert to fraction form
    1,169.16/1,753.44 = 552.70/x
  3. Step 3: Cross multiply
    1,169.16x = 1,753.44 × 552.70
  4. Step 4: Simplify right side
    1,169.16x = 969,126.29
  5. Step 5: Solve for x
    x = 969,126.29/1,169.16
  6. Step 6: Final answer
    x = 828.91

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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.