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Finding the Fourth Proportional to 1,672.96, 2,309.82 and 1,044.45

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Solution

The fourth proportional to 1,672.96, 2,309.82 and 1,044.45 is: 1,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.96 : 2,309.82 = 1,044.45 : x
  2. Step 2: Convert to fraction form
    1,672.96/2,309.82 = 1,044.45/x
  3. Step 3: Cross multiply
    1,672.96x = 2,309.82 × 1,044.45
  4. Step 4: Simplify right side
    1,672.96x = 2,412,474.73
  5. Step 5: Solve for x
    x = 2,412,474.73/1,672.96
  6. Step 6: Final answer
    x = 1,442.04

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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.