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Finding the Fourth Proportional to 263,446.80, 394,018.20 and 235,568.40

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Solution

The fourth proportional to 263,446.80, 394,018.20 and 235,568.40 is: 352,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,446.80 : 394,018.20 = 235,568.40 : x
  2. Step 2: Convert to fraction form
    263,446.80/394,018.20 = 235,568.40/x
  3. Step 3: Cross multiply
    263,446.80x = 394,018.20 × 235,568.40
  4. Step 4: Simplify right side
    263,446.80x = 92,818,236,944.88
  5. Step 5: Solve for x
    x = 92,818,236,944.88/263,446.80
  6. Step 6: Final answer
    x = 352,322.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.