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Finding the Fourth Proportional to 342,884.75, 473,185.84 and 197,687.66

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Solution

The fourth proportional to 342,884.75, 473,185.84 and 197,687.66 is: 272,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,884.75 : 473,185.84 = 197,687.66 : x
  2. Step 2: Convert to fraction form
    342,884.75/473,185.84 = 197,687.66/x
  3. Step 3: Cross multiply
    342,884.75x = 473,185.84 × 197,687.66
  4. Step 4: Simplify right side
    342,884.75x = 93,543,001,454.73
  5. Step 5: Solve for x
    x = 93,543,001,454.73/342,884.75
  6. Step 6: Final answer
    x = 272,811.79

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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.