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Finding the Fourth Proportional to 383,363.57, 529,043.87 and 222,314.21

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Solution

The fourth proportional to 383,363.57, 529,043.87 and 222,314.21 is: 306,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,363.57 : 529,043.87 = 222,314.21 : x
  2. Step 2: Convert to fraction form
    383,363.57/529,043.87 = 222,314.21/x
  3. Step 3: Cross multiply
    383,363.57x = 529,043.87 × 222,314.21
  4. Step 4: Simplify right side
    383,363.57x = 117,613,970,014.39
  5. Step 5: Solve for x
    x = 117,613,970,014.39/383,363.57
  6. Step 6: Final answer
    x = 306,794.85

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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.