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Finding the Fourth Proportional to 426.36, 588.24 and 251.67

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Solution

The fourth proportional to 426.36, 588.24 and 251.67 is: 347.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.36 : 588.24 = 251.67 : x
  2. Step 2: Convert to fraction form
    426.36/588.24 = 251.67/x
  3. Step 3: Cross multiply
    426.36x = 588.24 × 251.67
  4. Step 4: Simplify right side
    426.36x = 148,042.36
  5. Step 5: Solve for x
    x = 148,042.36/426.36
  6. Step 6: Final answer
    x = 347.22

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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.