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Finding the Fourth Proportional to 1,940.52, 2,910.45 and 844.59

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Solution

The fourth proportional to 1,940.52, 2,910.45 and 844.59 is: 1,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.52 : 2,910.45 = 844.59 : x
  2. Step 2: Convert to fraction form
    1,940.52/2,910.45 = 844.59/x
  3. Step 3: Cross multiply
    1,940.52x = 2,910.45 × 844.59
  4. Step 4: Simplify right side
    1,940.52x = 2,458,136.97
  5. Step 5: Solve for x
    x = 2,458,136.97/1,940.52
  6. Step 6: Final answer
    x = 1,266.74

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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.