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Finding the Fourth Proportional to 356,018.62, 491,305.32 and 194,872.22

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Solution

The fourth proportional to 356,018.62, 491,305.32 and 194,872.22 is: 268,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,018.62 : 491,305.32 = 194,872.22 : x
  2. Step 2: Convert to fraction form
    356,018.62/491,305.32 = 194,872.22/x
  3. Step 3: Cross multiply
    356,018.62x = 491,305.32 × 194,872.22
  4. Step 4: Simplify right side
    356,018.62x = 95,741,758,406.21
  5. Step 5: Solve for x
    x = 95,741,758,406.21/356,018.62
  6. Step 6: Final answer
    x = 268,923.46

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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.