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Finding the Fourth Proportional to 352,390.75, 486,299.49 and 191,245.76

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Solution

The fourth proportional to 352,390.75, 486,299.49 and 191,245.76 is: 263,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,390.75 : 486,299.49 = 191,245.76 : x
  2. Step 2: Convert to fraction form
    352,390.75/486,299.49 = 191,245.76/x
  3. Step 3: Cross multiply
    352,390.75x = 486,299.49 × 191,245.76
  4. Step 4: Simplify right side
    352,390.75x = 93,002,715,552.66
  5. Step 5: Solve for x
    x = 93,002,715,552.66/352,390.75
  6. Step 6: Final answer
    x = 263,919.29

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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.