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Finding the Fourth Proportional to 2,200.76, 3,301.14 and 739.91

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Solution

The fourth proportional to 2,200.76, 3,301.14 and 739.91 is: 1,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.76 : 3,301.14 = 739.91 : x
  2. Step 2: Convert to fraction form
    2,200.76/3,301.14 = 739.91/x
  3. Step 3: Cross multiply
    2,200.76x = 3,301.14 × 739.91
  4. Step 4: Simplify right side
    2,200.76x = 2,442,529.99
  5. Step 5: Solve for x
    x = 2,442,529.99/2,200.76
  6. Step 6: Final answer
    x = 1,109.86

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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.