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Finding the Fourth Proportional to 746.46, 1,120.26 and 335.88

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Solution

The fourth proportional to 746.46, 1,120.26 and 335.88 is: 504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.46 : 1,120.26 = 335.88 : x
  2. Step 2: Convert to fraction form
    746.46/1,120.26 = 335.88/x
  3. Step 3: Cross multiply
    746.46x = 1,120.26 × 335.88
  4. Step 4: Simplify right side
    746.46x = 376,272.93
  5. Step 5: Solve for x
    x = 376,272.93/746.46
  6. Step 6: Final answer
    x = 504.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.