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Finding the Fourth Proportional to 675.56, 1,013.26 and 469.52

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Solution

The fourth proportional to 675.56, 1,013.26 and 469.52 is: 704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.56 : 1,013.26 = 469.52 : x
  2. Step 2: Convert to fraction form
    675.56/1,013.26 = 469.52/x
  3. Step 3: Cross multiply
    675.56x = 1,013.26 × 469.52
  4. Step 4: Simplify right side
    675.56x = 475,745.84
  5. Step 5: Solve for x
    x = 475,745.84/675.56
  6. Step 6: Final answer
    x = 704.22

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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.