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Finding the Fourth Proportional to 352,423.43, 486,344.57 and 191,278.48

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Solution

The fourth proportional to 352,423.43, 486,344.57 and 191,278.48 is: 263,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,423.43 : 486,344.57 = 191,278.48 : x
  2. Step 2: Convert to fraction form
    352,423.43/486,344.57 = 191,278.48/x
  3. Step 3: Cross multiply
    352,423.43x = 486,344.57 × 191,278.48
  4. Step 4: Simplify right side
    352,423.43x = 93,027,250,105.85
  5. Step 5: Solve for x
    x = 93,027,250,105.85/352,423.43
  6. Step 6: Final answer
    x = 263,964.43

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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.