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Finding the Fourth Proportional to 1,044.96, 1,441.17 and 823.56

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Solution

The fourth proportional to 1,044.96, 1,441.17 and 823.56 is: 1,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.96 : 1,441.17 = 823.56 : x
  2. Step 2: Convert to fraction form
    1,044.96/1,441.17 = 823.56/x
  3. Step 3: Cross multiply
    1,044.96x = 1,441.17 × 823.56
  4. Step 4: Simplify right side
    1,044.96x = 1,186,889.97
  5. Step 5: Solve for x
    x = 1,186,889.97/1,044.96
  6. Step 6: Final answer
    x = 1,135.82

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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.