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Finding the Fourth Proportional to 325,306.80, 449,047.80 and 197,974.80

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Solution

The fourth proportional to 325,306.80, 449,047.80 and 197,974.80 is: 273,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,306.80 : 449,047.80 = 197,974.80 : x
  2. Step 2: Convert to fraction form
    325,306.80/449,047.80 = 197,974.80/x
  3. Step 3: Cross multiply
    325,306.80x = 449,047.80 × 197,974.80
  4. Step 4: Simplify right side
    325,306.80x = 88,900,148,395.44
  5. Step 5: Solve for x
    x = 88,900,148,395.44/325,306.80
  6. Step 6: Final answer
    x = 273,280.94

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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.