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Finding the Third Proportional to 304,768 and 656,188

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Solution

The third proportional to 304,768 and 656,188 is: 1,412,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,768 : 656,188 = 656,188 : x
  2. Step 2: Convert to fraction form
    304,768/656,188 = 656,188/x
  3. Step 3: Cross multiply
    304,768x = 656,188 × 656,188
  4. Step 4: Simplify right side
    304,768x = 430,582,691,344
  5. Step 5: Solve for x
    x = 430,582,691,344/304,768
  6. Step 6: Final answer
    x = 1,412,821.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.