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Finding the Fourth Proportional to 1,818.45, 2,729.70 and 996.30

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Solution

The fourth proportional to 1,818.45, 2,729.70 and 996.30 is: 1,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.45 : 2,729.70 = 996.30 : x
  2. Step 2: Convert to fraction form
    1,818.45/2,729.70 = 996.30/x
  3. Step 3: Cross multiply
    1,818.45x = 2,729.70 × 996.30
  4. Step 4: Simplify right side
    1,818.45x = 2,719,600.11
  5. Step 5: Solve for x
    x = 2,719,600.11/1,818.45
  6. Step 6: Final answer
    x = 1,495.56

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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.