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Finding the Fourth Proportional to 982.46, 1,474.11 and 366.03

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Solution

The fourth proportional to 982.46, 1,474.11 and 366.03 is: 549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.46 : 1,474.11 = 366.03 : x
  2. Step 2: Convert to fraction form
    982.46/1,474.11 = 366.03/x
  3. Step 3: Cross multiply
    982.46x = 1,474.11 × 366.03
  4. Step 4: Simplify right side
    982.46x = 539,568.48
  5. Step 5: Solve for x
    x = 539,568.48/982.46
  6. Step 6: Final answer
    x = 549.20

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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.