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Finding the Fourth Proportional to 296.96, 444.66 and 251.21

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Solution

The fourth proportional to 296.96, 444.66 and 251.21 is: 376.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.96 : 444.66 = 251.21 : x
  2. Step 2: Convert to fraction form
    296.96/444.66 = 251.21/x
  3. Step 3: Cross multiply
    296.96x = 444.66 × 251.21
  4. Step 4: Simplify right side
    296.96x = 111,703.04
  5. Step 5: Solve for x
    x = 111,703.04/296.96
  6. Step 6: Final answer
    x = 376.16

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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.