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Finding the Fourth Proportional to 383,362.82, 529,042.84 and 222,313.46

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Solution

The fourth proportional to 383,362.82, 529,042.84 and 222,313.46 is: 306,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,362.82 : 529,042.84 = 222,313.46 : x
  2. Step 2: Convert to fraction form
    383,362.82/529,042.84 = 222,313.46/x
  3. Step 3: Cross multiply
    383,362.82x = 529,042.84 × 222,313.46
  4. Step 4: Simplify right side
    383,362.82x = 117,613,341,814.45
  5. Step 5: Solve for x
    x = 117,613,341,814.45/383,362.82
  6. Step 6: Final answer
    x = 306,793.81

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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.