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Finding the Fourth Proportional to 613,236.75, 919,863.41 and 192,512.67

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Solution

The fourth proportional to 613,236.75, 919,863.41 and 192,512.67 is: 288,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,236.75 : 919,863.41 = 192,512.67 : x
  2. Step 2: Convert to fraction form
    613,236.75/919,863.41 = 192,512.67/x
  3. Step 3: Cross multiply
    613,236.75x = 919,863.41 × 192,512.67
  4. Step 4: Simplify right side
    613,236.75x = 177,085,360,131.84
  5. Step 5: Solve for x
    x = 177,085,360,131.84/613,236.75
  6. Step 6: Final answer
    x = 288,771.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.