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Finding the Fourth Proportional to 379,607.67, 523,864.81 and 226,659.22

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Solution

The fourth proportional to 379,607.67, 523,864.81 and 226,659.22 is: 312,793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,607.67 : 523,864.81 = 226,659.22 : x
  2. Step 2: Convert to fraction form
    379,607.67/523,864.81 = 226,659.22/x
  3. Step 3: Cross multiply
    379,607.67x = 523,864.81 × 226,659.22
  4. Step 4: Simplify right side
    379,607.67x = 118,738,789,220.05
  5. Step 5: Solve for x
    x = 118,738,789,220.05/379,607.67
  6. Step 6: Final answer
    x = 312,793.44

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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.