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Finding the Fourth Proportional to 1,165.58, 1,748.36 and 799.25

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Solution

The fourth proportional to 1,165.58, 1,748.36 and 799.25 is: 1,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.58 : 1,748.36 = 799.25 : x
  2. Step 2: Convert to fraction form
    1,165.58/1,748.36 = 799.25/x
  3. Step 3: Cross multiply
    1,165.58x = 1,748.36 × 799.25
  4. Step 4: Simplify right side
    1,165.58x = 1,397,376.73
  5. Step 5: Solve for x
    x = 1,397,376.73/1,165.58
  6. Step 6: Final answer
    x = 1,198.87

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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.