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Finding the Fourth Proportional to 322,252.16, 483,344.22 and 85,618.76

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Solution

The fourth proportional to 322,252.16, 483,344.22 and 85,618.76 is: 128,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,252.16 : 483,344.22 = 85,618.76 : x
  2. Step 2: Convert to fraction form
    322,252.16/483,344.22 = 85,618.76/x
  3. Step 3: Cross multiply
    322,252.16x = 483,344.22 × 85,618.76
  4. Step 4: Simplify right side
    322,252.16x = 41,383,332,769.57
  5. Step 5: Solve for x
    x = 41,383,332,769.57/322,252.16
  6. Step 6: Final answer
    x = 128,419.10

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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.