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Finding the Fourth Proportional to 394,683.85, 544,912.76 and 273,782.84

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Solution

The fourth proportional to 394,683.85, 544,912.76 and 273,782.84 is: 377,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,683.85 : 544,912.76 = 273,782.84 : x
  2. Step 2: Convert to fraction form
    394,683.85/544,912.76 = 273,782.84/x
  3. Step 3: Cross multiply
    394,683.85x = 544,912.76 × 273,782.84
  4. Step 4: Simplify right side
    394,683.85x = 149,187,761,616.12
  5. Step 5: Solve for x
    x = 149,187,761,616.12/394,683.85
  6. Step 6: Final answer
    x = 377,993.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.