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Finding the Fourth Proportional to 351,864.33, 485,624.65 and 222,814.58

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Solution

The fourth proportional to 351,864.33, 485,624.65 and 222,814.58 is: 307,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,864.33 : 485,624.65 = 222,814.58 : x
  2. Step 2: Convert to fraction form
    351,864.33/485,624.65 = 222,814.58/x
  3. Step 3: Cross multiply
    351,864.33x = 485,624.65 × 222,814.58
  4. Step 4: Simplify right side
    351,864.33x = 108,204,252,427.40
  5. Step 5: Solve for x
    x = 108,204,252,427.40/351,864.33
  6. Step 6: Final answer
    x = 307,516.97

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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.