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Finding the Fourth Proportional to 355,067.34, 489,990.30 and 193,922.46

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Solution

The fourth proportional to 355,067.34, 489,990.30 and 193,922.46 is: 267,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067.34 : 489,990.30 = 193,922.46 : x
  2. Step 2: Convert to fraction form
    355,067.34/489,990.30 = 193,922.46/x
  3. Step 3: Cross multiply
    355,067.34x = 489,990.30 × 193,922.46
  4. Step 4: Simplify right side
    355,067.34x = 95,020,124,352.14
  5. Step 5: Solve for x
    x = 95,020,124,352.14/355,067.34
  6. Step 6: Final answer
    x = 267,611.56

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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.