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Finding the Third Proportional to 432,840.38 and 646,837.50

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Solution

The third proportional to 432,840.38 and 646,837.50 is: 966,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,840.38 : 646,837.50 = 646,837.50 : x
  2. Step 2: Convert to fraction form
    432,840.38/646,837.50 = 646,837.50/x
  3. Step 3: Cross multiply
    432,840.38x = 646,837.50 × 646,837.50
  4. Step 4: Simplify right side
    432,840.38x = 418,398,751,406.25
  5. Step 5: Solve for x
    x = 418,398,751,406.25/432,840.38
  6. Step 6: Final answer
    x = 966,635.22

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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.