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Finding the Fourth Proportional to 748.26, 1,032.56 and 416.67

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Solution

The fourth proportional to 748.26, 1,032.56 and 416.67 is: 574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.26 : 1,032.56 = 416.67 : x
  2. Step 2: Convert to fraction form
    748.26/1,032.56 = 416.67/x
  3. Step 3: Cross multiply
    748.26x = 1,032.56 × 416.67
  4. Step 4: Simplify right side
    748.26x = 430,234.69
  5. Step 5: Solve for x
    x = 430,234.69/748.26
  6. Step 6: Final answer
    x = 574.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.