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Finding the Fourth Proportional to 365,105.91, 503,845.49 and 219,995.73

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Solution

The fourth proportional to 365,105.91, 503,845.49 and 219,995.73 is: 303,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,105.91 : 503,845.49 = 219,995.73 : x
  2. Step 2: Convert to fraction form
    365,105.91/503,845.49 = 219,995.73/x
  3. Step 3: Cross multiply
    365,105.91x = 503,845.49 × 219,995.73
  4. Step 4: Simplify right side
    365,105.91x = 110,843,855,279.78
  5. Step 5: Solve for x
    x = 110,843,855,279.78/365,105.91
  6. Step 6: Final answer
    x = 303,593.70

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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.