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Finding the Fourth Proportional to 733.88, 1,012.32 and 558.92

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Solution

The fourth proportional to 733.88, 1,012.32 and 558.92 is: 770.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.88 : 1,012.32 = 558.92 : x
  2. Step 2: Convert to fraction form
    733.88/1,012.32 = 558.92/x
  3. Step 3: Cross multiply
    733.88x = 1,012.32 × 558.92
  4. Step 4: Simplify right side
    733.88x = 565,805.89
  5. Step 5: Solve for x
    x = 565,805.89/733.88
  6. Step 6: Final answer
    x = 770.98

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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.