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Finding the Fourth Proportional to 379,608.67, 523,866.18 and 226,660.23

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Solution

The fourth proportional to 379,608.67, 523,866.18 and 226,660.23 is: 312,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,608.67 : 523,866.18 = 226,660.23 : x
  2. Step 2: Convert to fraction form
    379,608.67/523,866.18 = 226,660.23/x
  3. Step 3: Cross multiply
    379,608.67x = 523,866.18 × 226,660.23
  4. Step 4: Simplify right side
    379,608.67x = 118,739,628,848.02
  5. Step 5: Solve for x
    x = 118,739,628,848.02/379,608.67
  6. Step 6: Final answer
    x = 312,794.83

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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.