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Finding the Fourth Proportional to 1,168.38, 1,751.22 and 474.66

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Solution

The fourth proportional to 1,168.38, 1,751.22 and 474.66 is: 711.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.38 : 1,751.22 = 474.66 : x
  2. Step 2: Convert to fraction form
    1,168.38/1,751.22 = 474.66/x
  3. Step 3: Cross multiply
    1,168.38x = 1,751.22 × 474.66
  4. Step 4: Simplify right side
    1,168.38x = 831,234.09
  5. Step 5: Solve for x
    x = 831,234.09/1,168.38
  6. Step 6: Final answer
    x = 711.44

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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.