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Finding the Fourth Proportional to 354,906.59, 489,778.52 and 193,768.43

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Solution

The fourth proportional to 354,906.59, 489,778.52 and 193,768.43 is: 267,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,906.59 : 489,778.52 = 193,768.43 : x
  2. Step 2: Convert to fraction form
    354,906.59/489,778.52 = 193,768.43/x
  3. Step 3: Cross multiply
    354,906.59x = 489,778.52 × 193,768.43
  4. Step 4: Simplify right side
    354,906.59x = 94,903,611,450.39
  5. Step 5: Solve for x
    x = 94,903,611,450.39/354,906.59
  6. Step 6: Final answer
    x = 267,404.48

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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.