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Finding the Fourth Proportional to 1,167.57, 1,751.34 and 301.86

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Solution

The fourth proportional to 1,167.57, 1,751.34 and 301.86 is: 452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.57 : 1,751.34 = 301.86 : x
  2. Step 2: Convert to fraction form
    1,167.57/1,751.34 = 301.86/x
  3. Step 3: Cross multiply
    1,167.57x = 1,751.34 × 301.86
  4. Step 4: Simplify right side
    1,167.57x = 528,659.49
  5. Step 5: Solve for x
    x = 528,659.49/1,167.57
  6. Step 6: Final answer
    x = 452.79

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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.