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Finding the Fourth Proportional to 383,850.61, 529,542.56 and 222,612.22

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Solution

The fourth proportional to 383,850.61, 529,542.56 and 222,612.22 is: 307,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,850.61 : 529,542.56 = 222,612.22 : x
  2. Step 2: Convert to fraction form
    383,850.61/529,542.56 = 222,612.22/x
  3. Step 3: Cross multiply
    383,850.61x = 529,542.56 × 222,612.22
  4. Step 4: Simplify right side
    383,850.61x = 117,882,643,105.87
  5. Step 5: Solve for x
    x = 117,882,643,105.87/383,850.61
  6. Step 6: Final answer
    x = 307,105.52

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1.5x scale

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.