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Finding the Fourth Proportional to 1,168.31, 1,751.31 and 474.55

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Solution

The fourth proportional to 1,168.31, 1,751.31 and 474.55 is: 711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.31 : 1,751.31 = 474.55 : x
  2. Step 2: Convert to fraction form
    1,168.31/1,751.31 = 474.55/x
  3. Step 3: Cross multiply
    1,168.31x = 1,751.31 × 474.55
  4. Step 4: Simplify right side
    1,168.31x = 831,079.78
  5. Step 5: Solve for x
    x = 831,079.78/1,168.31
  6. Step 6: Final answer
    x = 711.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.