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Finding the Third Proportional to 294.75 and 432.56

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Solution

The third proportional to 294.75 and 432.56 is: 634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.75 : 432.56 = 432.56 : x
  2. Step 2: Convert to fraction form
    294.75/432.56 = 432.56/x
  3. Step 3: Cross multiply
    294.75x = 432.56 × 432.56
  4. Step 4: Simplify right side
    294.75x = 187,110.32
  5. Step 5: Solve for x
    x = 187,110.32/294.75
  6. Step 6: Final answer
    x = 634.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.