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Finding the Fourth Proportional to 351,942.40, 527,222.40 and 327,059.20

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Solution

The fourth proportional to 351,942.40, 527,222.40 and 327,059.20 is: 489,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,942.40 : 527,222.40 = 327,059.20 : x
  2. Step 2: Convert to fraction form
    351,942.40/527,222.40 = 327,059.20/x
  3. Step 3: Cross multiply
    351,942.40x = 527,222.40 × 327,059.20
  4. Step 4: Simplify right side
    351,942.40x = 172,432,936,366.08
  5. Step 5: Solve for x
    x = 172,432,936,366.08/351,942.40
  6. Step 6: Final answer
    x = 489,946.47

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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.