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Finding the Fourth Proportional to 351,994.56, 486,153.42 and 238,620.48

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Solution

The fourth proportional to 351,994.56, 486,153.42 and 238,620.48 is: 329,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,994.56 : 486,153.42 = 238,620.48 : x
  2. Step 2: Convert to fraction form
    351,994.56/486,153.42 = 238,620.48/x
  3. Step 3: Cross multiply
    351,994.56x = 486,153.42 × 238,620.48
  4. Step 4: Simplify right side
    351,994.56x = 116,006,162,434.04
  5. Step 5: Solve for x
    x = 116,006,162,434.04/351,994.56
  6. Step 6: Final answer
    x = 329,568.05

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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.