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Finding the Fourth Proportional to 2,470.44, 3,704.28 and 826.08

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Solution

The fourth proportional to 2,470.44, 3,704.28 and 826.08 is: 1,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.44 : 3,704.28 = 826.08 : x
  2. Step 2: Convert to fraction form
    2,470.44/3,704.28 = 826.08/x
  3. Step 3: Cross multiply
    2,470.44x = 3,704.28 × 826.08
  4. Step 4: Simplify right side
    2,470.44x = 3,060,031.62
  5. Step 5: Solve for x
    x = 3,060,031.62/2,470.44
  6. Step 6: Final answer
    x = 1,238.66

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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.