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Finding the Fourth Proportional to 393,906.04, 543,583.38 and 224,136.52

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Solution

The fourth proportional to 393,906.04, 543,583.38 and 224,136.52 is: 309,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,906.04 : 543,583.38 = 224,136.52 : x
  2. Step 2: Convert to fraction form
    393,906.04/543,583.38 = 224,136.52/x
  3. Step 3: Cross multiply
    393,906.04x = 543,583.38 × 224,136.52
  4. Step 4: Simplify right side
    393,906.04x = 121,836,887,123.04
  5. Step 5: Solve for x
    x = 121,836,887,123.04/393,906.04
  6. Step 6: Final answer
    x = 309,304.44

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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.