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Finding the Fourth Proportional to 394,100.25, 591,343.55 and 244,300.87

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Solution

The fourth proportional to 394,100.25, 591,343.55 and 244,300.87 is: 366,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,100.25 : 591,343.55 = 244,300.87 : x
  2. Step 2: Convert to fraction form
    394,100.25/591,343.55 = 244,300.87/x
  3. Step 3: Cross multiply
    394,100.25x = 591,343.55 × 244,300.87
  4. Step 4: Simplify right side
    394,100.25x = 144,465,743,733.89
  5. Step 5: Solve for x
    x = 144,465,743,733.89/394,100.25
  6. Step 6: Final answer
    x = 366,571.05

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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.