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Finding the Fourth Proportional to 422,868.73, 583,585.41 and 231,882.12

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Solution

The fourth proportional to 422,868.73, 583,585.41 and 231,882.12 is: 320,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,868.73 : 583,585.41 = 231,882.12 : x
  2. Step 2: Convert to fraction form
    422,868.73/583,585.41 = 231,882.12/x
  3. Step 3: Cross multiply
    422,868.73x = 583,585.41 × 231,882.12
  4. Step 4: Simplify right side
    422,868.73x = 135,323,022,071.87
  5. Step 5: Solve for x
    x = 135,323,022,071.87/422,868.73
  6. Step 6: Final answer
    x = 320,011.89

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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.