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Finding the Fourth Proportional to 1,168.58, 1,753.10 and 552.98

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Solution

The fourth proportional to 1,168.58, 1,753.10 and 552.98 is: 829.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.58 : 1,753.10 = 552.98 : x
  2. Step 2: Convert to fraction form
    1,168.58/1,753.10 = 552.98/x
  3. Step 3: Cross multiply
    1,168.58x = 1,753.10 × 552.98
  4. Step 4: Simplify right side
    1,168.58x = 969,429.24
  5. Step 5: Solve for x
    x = 969,429.24/1,168.58
  6. Step 6: Final answer
    x = 829.58

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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.