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Finding the Third Proportional to 334,129 and 517,839

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Solution

The third proportional to 334,129 and 517,839 is: 802,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,129 : 517,839 = 517,839 : x
  2. Step 2: Convert to fraction form
    334,129/517,839 = 517,839/x
  3. Step 3: Cross multiply
    334,129x = 517,839 × 517,839
  4. Step 4: Simplify right side
    334,129x = 268,157,229,921
  5. Step 5: Solve for x
    x = 268,157,229,921/334,129
  6. Step 6: Final answer
    x = 802,555.99

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.