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Finding the Fourth Proportional to 279,349.44, 385,953.24 and 194,843.76

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Solution

The fourth proportional to 279,349.44, 385,953.24 and 194,843.76 is: 269,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,349.44 : 385,953.24 = 194,843.76 : x
  2. Step 2: Convert to fraction form
    279,349.44/385,953.24 = 194,843.76/x
  3. Step 3: Cross multiply
    279,349.44x = 385,953.24 × 194,843.76
  4. Step 4: Simplify right side
    279,349.44x = 75,200,580,465.78
  5. Step 5: Solve for x
    x = 75,200,580,465.78/279,349.44
  6. Step 6: Final answer
    x = 269,198.97

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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.