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Finding the Third Proportional to 294 and 458.75

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Solution

The third proportional to 294 and 458.75 is: 715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    294 : 458.75 = 458.75 : x
  2. Step 2: Convert to fraction form
    294/458.75 = 458.75/x
  3. Step 3: Cross multiply
    294x = 458.75 × 458.75
  4. Step 4: Simplify right side
    294x = 210,451.56
  5. Step 5: Solve for x
    x = 210,451.56/294
  6. Step 6: Final answer
    x = 715.82

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.