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Finding the Fourth Proportional to 394,703.91, 544,940.46 and 273,802.91

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Solution

The fourth proportional to 394,703.91, 544,940.46 and 273,802.91 is: 378,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,703.91 : 544,940.46 = 273,802.91 : x
  2. Step 2: Convert to fraction form
    394,703.91/544,940.46 = 273,802.91/x
  3. Step 3: Cross multiply
    394,703.91x = 544,940.46 × 273,802.91
  4. Step 4: Simplify right side
    394,703.91x = 149,206,281,000.04
  5. Step 5: Solve for x
    x = 149,206,281,000.04/394,703.91
  6. Step 6: Final answer
    x = 378,020.78

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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.