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Finding the Fourth Proportional to 318,826.70, 477,715.12 and 222,773.66

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Solution

The fourth proportional to 318,826.70, 477,715.12 and 222,773.66 is: 333,793.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,826.70 : 477,715.12 = 222,773.66 : x
  2. Step 2: Convert to fraction form
    318,826.70/477,715.12 = 222,773.66/x
  3. Step 3: Cross multiply
    318,826.70x = 477,715.12 × 222,773.66
  4. Step 4: Simplify right side
    318,826.70x = 106,422,345,719.74
  5. Step 5: Solve for x
    x = 106,422,345,719.74/318,826.70
  6. Step 6: Final answer
    x = 333,793.71

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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.