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Finding the Third Proportional to 654,921 and 1,409,440.50

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Solution

The third proportional to 654,921 and 1,409,440.50 is: 3,033,224.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,921 : 1,409,440.50 = 1,409,440.50 : x
  2. Step 2: Convert to fraction form
    654,921/1,409,440.50 = 1,409,440.50/x
  3. Step 3: Cross multiply
    654,921x = 1,409,440.50 × 1,409,440.50
  4. Step 4: Simplify right side
    654,921x = 1,986,522,523,040.25
  5. Step 5: Solve for x
    x = 1,986,522,523,040.25/654,921
  6. Step 6: Final answer
    x = 3,033,224.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.