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Finding the Fourth Proportional to 1,052.34, 1,575.48 and 793.44

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Solution

The fourth proportional to 1,052.34, 1,575.48 and 793.44 is: 1,187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.34 : 1,575.48 = 793.44 : x
  2. Step 2: Convert to fraction form
    1,052.34/1,575.48 = 793.44/x
  3. Step 3: Cross multiply
    1,052.34x = 1,575.48 × 793.44
  4. Step 4: Simplify right side
    1,052.34x = 1,250,048.85
  5. Step 5: Solve for x
    x = 1,250,048.85/1,052.34
  6. Step 6: Final answer
    x = 1,187.88

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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.