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Finding the Fourth Proportional to 1,167.66, 1,751.28 and 301.92

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Solution

The fourth proportional to 1,167.66, 1,751.28 and 301.92 is: 452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.66 : 1,751.28 = 301.92 : x
  2. Step 2: Convert to fraction form
    1,167.66/1,751.28 = 301.92/x
  3. Step 3: Cross multiply
    1,167.66x = 1,751.28 × 301.92
  4. Step 4: Simplify right side
    1,167.66x = 528,746.46
  5. Step 5: Solve for x
    x = 528,746.46/1,167.66
  6. Step 6: Final answer
    x = 452.83

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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.