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Finding the Fourth Proportional to 393,287,667.12, 589,959,844.56 and 150,950,571.12

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Solution

The fourth proportional to 393,287,667.12, 589,959,844.56 and 150,950,571.12 is: 226,436,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,287,667.12 : 589,959,844.56 = 150,950,571.12 : x
  2. Step 2: Convert to fraction form
    393,287,667.12/589,959,844.56 = 150,950,571.12/x
  3. Step 3: Cross multiply
    393,287,667.12x = 589,959,844.56 × 150,950,571.12
  4. Step 4: Simplify right side
    393,287,667.12x = 89,054,775,474,198,416
  5. Step 5: Solve for x
    x = 89,054,775,474,198,416/393,287,667.12
  6. Step 6: Final answer
    x = 226,436,735.55

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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.