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Finding the Third Proportional to 288.88 and 414.19

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Solution

The third proportional to 288.88 and 414.19 is: 593.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.88 : 414.19 = 414.19 : x
  2. Step 2: Convert to fraction form
    288.88/414.19 = 414.19/x
  3. Step 3: Cross multiply
    288.88x = 414.19 × 414.19
  4. Step 4: Simplify right side
    288.88x = 171,551.29
  5. Step 5: Solve for x
    x = 171,551.29/288.88
  6. Step 6: Final answer
    x = 593.86

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.