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Finding the Fourth Proportional to 381,844.80, 572,767.20 and 367,329.60

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Solution

The fourth proportional to 381,844.80, 572,767.20 and 367,329.60 is: 550,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,844.80 : 572,767.20 = 367,329.60 : x
  2. Step 2: Convert to fraction form
    381,844.80/572,767.20 = 367,329.60/x
  3. Step 3: Cross multiply
    381,844.80x = 572,767.20 × 367,329.60
  4. Step 4: Simplify right side
    381,844.80x = 210,394,346,469.12
  5. Step 5: Solve for x
    x = 210,394,346,469.12/381,844.80
  6. Step 6: Final answer
    x = 550,994.40

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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.