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Finding the Fourth Proportional to 1,844.32, 2,766.34 and 674.28

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Solution

The fourth proportional to 1,844.32, 2,766.34 and 674.28 is: 1,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.32 : 2,766.34 = 674.28 : x
  2. Step 2: Convert to fraction form
    1,844.32/2,766.34 = 674.28/x
  3. Step 3: Cross multiply
    1,844.32x = 2,766.34 × 674.28
  4. Step 4: Simplify right side
    1,844.32x = 1,865,287.74
  5. Step 5: Solve for x
    x = 1,865,287.74/1,844.32
  6. Step 6: Final answer
    x = 1,011.37

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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.