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Finding the Fourth Proportional to 757.34, 1,044.94 and 442.52

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Solution

The fourth proportional to 757.34, 1,044.94 and 442.52 is: 610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.34 : 1,044.94 = 442.52 : x
  2. Step 2: Convert to fraction form
    757.34/1,044.94 = 442.52/x
  3. Step 3: Cross multiply
    757.34x = 1,044.94 × 442.52
  4. Step 4: Simplify right side
    757.34x = 462,406.85
  5. Step 5: Solve for x
    x = 462,406.85/757.34
  6. Step 6: Final answer
    x = 610.57

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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.