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Finding the Fourth Proportional to 422,754.58, 583,401.18 and 231,763.87

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Solution

The fourth proportional to 422,754.58, 583,401.18 and 231,763.87 is: 319,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,754.58 : 583,401.18 = 231,763.87 : x
  2. Step 2: Convert to fraction form
    422,754.58/583,401.18 = 231,763.87/x
  3. Step 3: Cross multiply
    422,754.58x = 583,401.18 × 231,763.87
  4. Step 4: Simplify right side
    422,754.58x = 135,211,315,239.37
  5. Step 5: Solve for x
    x = 135,211,315,239.37/422,754.58
  6. Step 6: Final answer
    x = 319,834.06

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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.