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Finding the Third Proportional to 685,572.75 and 1,485,558

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Solution

The third proportional to 685,572.75 and 1,485,558 is: 3,219,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,572.75 : 1,485,558 = 1,485,558 : x
  2. Step 2: Convert to fraction form
    685,572.75/1,485,558 = 1,485,558/x
  3. Step 3: Cross multiply
    685,572.75x = 1,485,558 × 1,485,558
  4. Step 4: Simplify right side
    685,572.75x = 2,206,882,571,364
  5. Step 5: Solve for x
    x = 2,206,882,571,364/685,572.75
  6. Step 6: Final answer
    x = 3,219,034.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.