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Finding the Fourth Proportional to 376,243.85, 519,182.16 and 223,255.71

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Solution

The fourth proportional to 376,243.85, 519,182.16 and 223,255.71 is: 308,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,243.85 : 519,182.16 = 223,255.71 : x
  2. Step 2: Convert to fraction form
    376,243.85/519,182.16 = 223,255.71/x
  3. Step 3: Cross multiply
    376,243.85x = 519,182.16 × 223,255.71
  4. Step 4: Simplify right side
    376,243.85x = 115,910,380,912.93
  5. Step 5: Solve for x
    x = 115,910,380,912.93/376,243.85
  6. Step 6: Final answer
    x = 308,072.49

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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.