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Finding the Third Proportional to 363,856.50 and 553,128.75

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Solution

The third proportional to 363,856.50 and 553,128.75 is: 840,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,856.50 : 553,128.75 = 553,128.75 : x
  2. Step 2: Convert to fraction form
    363,856.50/553,128.75 = 553,128.75/x
  3. Step 3: Cross multiply
    363,856.50x = 553,128.75 × 553,128.75
  4. Step 4: Simplify right side
    363,856.50x = 305,951,414,076.56
  5. Step 5: Solve for x
    x = 305,951,414,076.56/363,856.50
  6. Step 6: Final answer
    x = 840,857.35

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.