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Finding the Third Proportional to 311,914.50 and 472,275

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Solution

The third proportional to 311,914.50 and 472,275 is: 715,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,914.50 : 472,275 = 472,275 : x
  2. Step 2: Convert to fraction form
    311,914.50/472,275 = 472,275/x
  3. Step 3: Cross multiply
    311,914.50x = 472,275 × 472,275
  4. Step 4: Simplify right side
    311,914.50x = 223,043,675,625
  5. Step 5: Solve for x
    x = 223,043,675,625/311,914.50
  6. Step 6: Final answer
    x = 715,079.54

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.