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Finding the Fourth Proportional to 283,626.40, 425,785.20 and 281,552.80

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Solution

The fourth proportional to 283,626.40, 425,785.20 and 281,552.80 is: 422,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,626.40 : 425,785.20 = 281,552.80 : x
  2. Step 2: Convert to fraction form
    283,626.40/425,785.20 = 281,552.80/x
  3. Step 3: Cross multiply
    283,626.40x = 425,785.20 × 281,552.80
  4. Step 4: Simplify right side
    283,626.40x = 119,881,015,258.56
  5. Step 5: Solve for x
    x = 119,881,015,258.56/283,626.40
  6. Step 6: Final answer
    x = 422,672.27

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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.