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Finding the Fourth Proportional to 394,812.09, 544,826.25 and 225,013.41

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Solution

The fourth proportional to 394,812.09, 544,826.25 and 225,013.41 is: 310,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,812.09 : 544,826.25 = 225,013.41 : x
  2. Step 2: Convert to fraction form
    394,812.09/544,826.25 = 225,013.41/x
  3. Step 3: Cross multiply
    394,812.09x = 544,826.25 × 225,013.41
  4. Step 4: Simplify right side
    394,812.09x = 122,593,212,370.01
  5. Step 5: Solve for x
    x = 122,593,212,370.01/394,812.09
  6. Step 6: Final answer
    x = 310,510.28

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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.