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Finding the Third Proportional to 194 and 314.50

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Solution

The third proportional to 194 and 314.50 is: 509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    194 : 314.50 = 314.50 : x
  2. Step 2: Convert to fraction form
    194/314.50 = 314.50/x
  3. Step 3: Cross multiply
    194x = 314.50 × 314.50
  4. Step 4: Simplify right side
    194x = 98,910.25
  5. Step 5: Solve for x
    x = 98,910.25/194
  6. Step 6: Final answer
    x = 509.85

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.