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Finding the Fourth Proportional to 379,609.92, 523,867.91 and 226,661.48

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Solution

The fourth proportional to 379,609.92, 523,867.91 and 226,661.48 is: 312,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,609.92 : 523,867.91 = 226,661.48 : x
  2. Step 2: Convert to fraction form
    379,609.92/523,867.91 = 226,661.48/x
  3. Step 3: Cross multiply
    379,609.92x = 523,867.91 × 226,661.48
  4. Step 4: Simplify right side
    379,609.92x = 118,740,672,052.46
  5. Step 5: Solve for x
    x = 118,740,672,052.46/379,609.92
  6. Step 6: Final answer
    x = 312,796.55

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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.