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Finding the Fourth Proportional to 300,879.84, 415,217.46 and 164,910.81

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Solution

The fourth proportional to 300,879.84, 415,217.46 and 164,910.81 is: 227,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,879.84 : 415,217.46 = 164,910.81 : x
  2. Step 2: Convert to fraction form
    300,879.84/415,217.46 = 164,910.81/x
  3. Step 3: Cross multiply
    300,879.84x = 415,217.46 × 164,910.81
  4. Step 4: Simplify right side
    300,879.84x = 68,473,846,830.19
  5. Step 5: Solve for x
    x = 68,473,846,830.19/300,879.84
  6. Step 6: Final answer
    x = 227,578.71

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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.