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Finding the Fourth Proportional to 666,092.22, 919,223.01 and 379,638.96

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Solution

The fourth proportional to 666,092.22, 919,223.01 and 379,638.96 is: 523,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,092.22 : 919,223.01 = 379,638.96 : x
  2. Step 2: Convert to fraction form
    666,092.22/919,223.01 = 379,638.96/x
  3. Step 3: Cross multiply
    666,092.22x = 919,223.01 × 379,638.96
  4. Step 4: Simplify right side
    666,092.22x = 348,972,867,524.47
  5. Step 5: Solve for x
    x = 348,972,867,524.47/666,092.22
  6. Step 6: Final answer
    x = 523,910.74

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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.