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Finding the Fourth Proportional to 2,405.42, 3,608.36 and 674.04

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Solution

The fourth proportional to 2,405.42, 3,608.36 and 674.04 is: 1,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.42 : 3,608.36 = 674.04 : x
  2. Step 2: Convert to fraction form
    2,405.42/3,608.36 = 674.04/x
  3. Step 3: Cross multiply
    2,405.42x = 3,608.36 × 674.04
  4. Step 4: Simplify right side
    2,405.42x = 2,432,178.97
  5. Step 5: Solve for x
    x = 2,432,178.97/2,405.42
  6. Step 6: Final answer
    x = 1,011.12

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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.