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Finding the Fourth Proportional to 422,882.72, 583,586.16 and 231,884.72

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Solution

The fourth proportional to 422,882.72, 583,586.16 and 231,884.72 is: 320,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,882.72 : 583,586.16 = 231,884.72 : x
  2. Step 2: Convert to fraction form
    422,882.72/583,586.16 = 231,884.72/x
  3. Step 3: Cross multiply
    422,882.72x = 583,586.16 × 231,884.72
  4. Step 4: Simplify right side
    422,882.72x = 135,324,713,307.48
  5. Step 5: Solve for x
    x = 135,324,713,307.48/422,882.72
  6. Step 6: Final answer
    x = 320,005.30

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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.