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Finding the Fourth Proportional to 352,414.44, 486,110.73 and 209,073

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Solution

The fourth proportional to 352,414.44, 486,110.73 and 209,073 is: 288,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,414.44 : 486,110.73 = 209,073 : x
  2. Step 2: Convert to fraction form
    352,414.44/486,110.73 = 209,073/x
  3. Step 3: Cross multiply
    352,414.44x = 486,110.73 × 209,073
  4. Step 4: Simplify right side
    352,414.44x = 101,632,628,653.29
  5. Step 5: Solve for x
    x = 101,632,628,653.29/352,414.44
  6. Step 6: Final answer
    x = 288,389.51

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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.