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Finding the Fourth Proportional to 355,694.40, 533,930.40 and 222,724.80

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Solution

The fourth proportional to 355,694.40, 533,930.40 and 222,724.80 is: 334,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,694.40 : 533,930.40 = 222,724.80 : x
  2. Step 2: Convert to fraction form
    355,694.40/533,930.40 = 222,724.80/x
  3. Step 3: Cross multiply
    355,694.40x = 533,930.40 × 222,724.80
  4. Step 4: Simplify right side
    355,694.40x = 118,919,541,553.92
  5. Step 5: Solve for x
    x = 118,919,541,553.92/355,694.40
  6. Step 6: Final answer
    x = 334,330.65

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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.