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Finding the Fourth Proportional to 354,972.92, 489,843.52 and 193,825.58

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Solution

The fourth proportional to 354,972.92, 489,843.52 and 193,825.58 is: 267,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,972.92 : 489,843.52 = 193,825.58 : x
  2. Step 2: Convert to fraction form
    354,972.92/489,843.52 = 193,825.58/x
  3. Step 3: Cross multiply
    354,972.92x = 489,843.52 × 193,825.58
  4. Step 4: Simplify right side
    354,972.92x = 94,944,201,439.46
  5. Step 5: Solve for x
    x = 94,944,201,439.46/354,972.92
  6. Step 6: Final answer
    x = 267,468.86

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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.