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Finding the Fourth Proportional to 1,082.44, 1,624.14 and 1,079.08

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Solution

The fourth proportional to 1,082.44, 1,624.14 and 1,079.08 is: 1,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.44 : 1,624.14 = 1,079.08 : x
  2. Step 2: Convert to fraction form
    1,082.44/1,624.14 = 1,079.08/x
  3. Step 3: Cross multiply
    1,082.44x = 1,624.14 × 1,079.08
  4. Step 4: Simplify right side
    1,082.44x = 1,752,576.99
  5. Step 5: Solve for x
    x = 1,752,576.99/1,082.44
  6. Step 6: Final answer
    x = 1,619.10

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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.