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Finding the Fourth Proportional to 1,024.74, 1,414.09 and 576.61

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Solution

The fourth proportional to 1,024.74, 1,414.09 and 576.61 is: 795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.74 : 1,414.09 = 576.61 : x
  2. Step 2: Convert to fraction form
    1,024.74/1,414.09 = 576.61/x
  3. Step 3: Cross multiply
    1,024.74x = 1,414.09 × 576.61
  4. Step 4: Simplify right side
    1,024.74x = 815,378.43
  5. Step 5: Solve for x
    x = 815,378.43/1,024.74
  6. Step 6: Final answer
    x = 795.69

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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.