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Finding the Fourth Proportional to 352,418.91, 486,338.57 and 191,273.96

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Solution

The fourth proportional to 352,418.91, 486,338.57 and 191,273.96 is: 263,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,418.91 : 486,338.57 = 191,273.96 : x
  2. Step 2: Convert to fraction form
    352,418.91/486,338.57 = 191,273.96/x
  3. Step 3: Cross multiply
    352,418.91x = 486,338.57 × 191,273.96
  4. Step 4: Simplify right side
    352,418.91x = 93,023,904,184.64
  5. Step 5: Solve for x
    x = 93,023,904,184.64/352,418.91
  6. Step 6: Final answer
    x = 263,958.32

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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.