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Finding the Fourth Proportional to 329,361.76, 494,019.60 and 188,679.52

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Solution

The fourth proportional to 329,361.76, 494,019.60 and 188,679.52 is: 283,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,361.76 : 494,019.60 = 188,679.52 : x
  2. Step 2: Convert to fraction form
    329,361.76/494,019.60 = 188,679.52/x
  3. Step 3: Cross multiply
    329,361.76x = 494,019.60 × 188,679.52
  4. Step 4: Simplify right side
    329,361.76x = 93,211,380,998.59
  5. Step 5: Solve for x
    x = 93,211,380,998.59/329,361.76
  6. Step 6: Final answer
    x = 283,006.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.