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Finding the Fourth Proportional to 481,553.94, 722,532.51 and 211,542.81

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Solution

The fourth proportional to 481,553.94, 722,532.51 and 211,542.81 is: 317,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,553.94 : 722,532.51 = 211,542.81 : x
  2. Step 2: Convert to fraction form
    481,553.94/722,532.51 = 211,542.81/x
  3. Step 3: Cross multiply
    481,553.94x = 722,532.51 × 211,542.81
  4. Step 4: Simplify right side
    481,553.94x = 152,846,557,481.75
  5. Step 5: Solve for x
    x = 152,846,557,481.75/481,553.94
  6. Step 6: Final answer
    x = 317,402.78

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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.