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Finding the Fourth Proportional to 352,673.46, 486,838.38 and 238,107.36

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Solution

The fourth proportional to 352,673.46, 486,838.38 and 238,107.36 is: 328,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,673.46 : 486,838.38 = 238,107.36 : x
  2. Step 2: Convert to fraction form
    352,673.46/486,838.38 = 238,107.36/x
  3. Step 3: Cross multiply
    352,673.46x = 486,838.38 × 238,107.36
  4. Step 4: Simplify right side
    352,673.46x = 115,919,801,408.48
  5. Step 5: Solve for x
    x = 115,919,801,408.48/352,673.46
  6. Step 6: Final answer
    x = 328,688.76

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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.