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Finding the Fourth Proportional to 547,223.20, 820,834.80 and 481,904.80

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Solution

The fourth proportional to 547,223.20, 820,834.80 and 481,904.80 is: 722,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,223.20 : 820,834.80 = 481,904.80 : x
  2. Step 2: Convert to fraction form
    547,223.20/820,834.80 = 481,904.80/x
  3. Step 3: Cross multiply
    547,223.20x = 820,834.80 × 481,904.80
  4. Step 4: Simplify right side
    547,223.20x = 395,564,230,127.04
  5. Step 5: Solve for x
    x = 395,564,230,127.04/547,223.20
  6. Step 6: Final answer
    x = 722,857.20

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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.