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Finding the Fourth Proportional to 354,850.65, 489,675.20 and 193,674.42

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Solution

The fourth proportional to 354,850.65, 489,675.20 and 193,674.42 is: 267,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,850.65 : 489,675.20 = 193,674.42 : x
  2. Step 2: Convert to fraction form
    354,850.65/489,675.20 = 193,674.42/x
  3. Step 3: Cross multiply
    354,850.65x = 489,675.20 × 193,674.42
  4. Step 4: Simplify right side
    354,850.65x = 94,837,560,348.38
  5. Step 5: Solve for x
    x = 94,837,560,348.38/354,850.65
  6. Step 6: Final answer
    x = 267,260.49

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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.