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Finding the Third Proportional to 323,541 and 431,028.75

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Solution

The third proportional to 323,541 and 431,028.75 is: 574,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,541 : 431,028.75 = 431,028.75 : x
  2. Step 2: Convert to fraction form
    323,541/431,028.75 = 431,028.75/x
  3. Step 3: Cross multiply
    323,541x = 431,028.75 × 431,028.75
  4. Step 4: Simplify right side
    323,541x = 185,785,783,326.56
  5. Step 5: Solve for x
    x = 185,785,783,326.56/323,541
  6. Step 6: Final answer
    x = 574,226.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.