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Finding the Fourth Proportional to 338,136.75, 466,662.74 and 187,233.75

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Solution

The fourth proportional to 338,136.75, 466,662.74 and 187,233.75 is: 258,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,136.75 : 466,662.74 = 187,233.75 : x
  2. Step 2: Convert to fraction form
    338,136.75/466,662.74 = 187,233.75/x
  3. Step 3: Cross multiply
    338,136.75x = 466,662.74 × 187,233.75
  4. Step 4: Simplify right side
    338,136.75x = 87,375,013,859.31
  5. Step 5: Solve for x
    x = 87,375,013,859.31/338,136.75
  6. Step 6: Final answer
    x = 258,401.41

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1.5x scale

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.