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Finding the Fourth Proportional to 2,260.62, 3,389.67 and 700.20

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Solution

The fourth proportional to 2,260.62, 3,389.67 and 700.20 is: 1,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.62 : 3,389.67 = 700.20 : x
  2. Step 2: Convert to fraction form
    2,260.62/3,389.67 = 700.20/x
  3. Step 3: Cross multiply
    2,260.62x = 3,389.67 × 700.20
  4. Step 4: Simplify right side
    2,260.62x = 2,373,446.93
  5. Step 5: Solve for x
    x = 2,373,446.93/2,260.62
  6. Step 6: Final answer
    x = 1,049.91

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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.