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Finding the Fourth Proportional to 1,879.75, 2,593.99 and 1,040.49

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Solution

The fourth proportional to 1,879.75, 2,593.99 and 1,040.49 is: 1,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.75 : 2,593.99 = 1,040.49 : x
  2. Step 2: Convert to fraction form
    1,879.75/2,593.99 = 1,040.49/x
  3. Step 3: Cross multiply
    1,879.75x = 2,593.99 × 1,040.49
  4. Step 4: Simplify right side
    1,879.75x = 2,699,020.66
  5. Step 5: Solve for x
    x = 2,699,020.66/1,879.75
  6. Step 6: Final answer
    x = 1,435.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.