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Finding the Third Proportional to 432,839.50 and 646,837

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Solution

The third proportional to 432,839.50 and 646,837 is: 966,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,839.50 : 646,837 = 646,837 : x
  2. Step 2: Convert to fraction form
    432,839.50/646,837 = 646,837/x
  3. Step 3: Cross multiply
    432,839.50x = 646,837 × 646,837
  4. Step 4: Simplify right side
    432,839.50x = 418,398,104,569
  5. Step 5: Solve for x
    x = 418,398,104,569/432,839.50
  6. Step 6: Final answer
    x = 966,635.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.