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Finding the Fourth Proportional to 352,446.38, 486,362.98 and 191,298.03

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Solution

The fourth proportional to 352,446.38, 486,362.98 and 191,298.03 is: 263,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,446.38 : 486,362.98 = 191,298.03 : x
  2. Step 2: Convert to fraction form
    352,446.38/486,362.98 = 191,298.03/x
  3. Step 3: Cross multiply
    352,446.38x = 486,362.98 × 191,298.03
  4. Step 4: Simplify right side
    352,446.38x = 93,040,279,938.93
  5. Step 5: Solve for x
    x = 93,040,279,938.93/352,446.38
  6. Step 6: Final answer
    x = 263,984.21

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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.