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Finding the Third Proportional to 514,809 and 787,536

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Solution

The third proportional to 514,809 and 787,536 is: 1,204,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,809 : 787,536 = 787,536 : x
  2. Step 2: Convert to fraction form
    514,809/787,536 = 787,536/x
  3. Step 3: Cross multiply
    514,809x = 787,536 × 787,536
  4. Step 4: Simplify right side
    514,809x = 620,212,951,296
  5. Step 5: Solve for x
    x = 620,212,951,296/514,809
  6. Step 6: Final answer
    x = 1,204,743.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.