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Finding the Third Proportional to 317,279 and 475,959

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Solution

The third proportional to 317,279 and 475,959 is: 713,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,279 : 475,959 = 475,959 : x
  2. Step 2: Convert to fraction form
    317,279/475,959 = 475,959/x
  3. Step 3: Cross multiply
    317,279x = 475,959 × 475,959
  4. Step 4: Simplify right side
    317,279x = 226,536,969,681
  5. Step 5: Solve for x
    x = 226,536,969,681/317,279
  6. Step 6: Final answer
    x = 713,999.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.