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Finding the Fourth Proportional to 1,694.26, 2,540.45 and 944.00

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Solution

The fourth proportional to 1,694.26, 2,540.45 and 944.00 is: 1,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.26 : 2,540.45 = 944.00 : x
  2. Step 2: Convert to fraction form
    1,694.26/2,540.45 = 944.00/x
  3. Step 3: Cross multiply
    1,694.26x = 2,540.45 × 944.00
  4. Step 4: Simplify right side
    1,694.26x = 2,398,183.98
  5. Step 5: Solve for x
    x = 2,398,183.98/1,694.26
  6. Step 6: Final answer
    x = 1,415.47

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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.