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Finding the Fourth Proportional to 379,044.89, 568,569.18 and 154,407.48

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Solution

The fourth proportional to 379,044.89, 568,569.18 and 154,407.48 is: 231,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,044.89 : 568,569.18 = 154,407.48 : x
  2. Step 2: Convert to fraction form
    379,044.89/568,569.18 = 154,407.48/x
  3. Step 3: Cross multiply
    379,044.89x = 568,569.18 × 154,407.48
  4. Step 4: Simplify right side
    379,044.89x = 87,791,334,289.47
  5. Step 5: Solve for x
    x = 87,791,334,289.47/379,044.89
  6. Step 6: Final answer
    x = 231,611.97

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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.