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Finding the Fourth Proportional to 422,674.50, 583,350.48 and 261,581.43

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Solution

The fourth proportional to 422,674.50, 583,350.48 and 261,581.43 is: 361,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,674.50 : 583,350.48 = 261,581.43 : x
  2. Step 2: Convert to fraction form
    422,674.50/583,350.48 = 261,581.43/x
  3. Step 3: Cross multiply
    422,674.50x = 583,350.48 × 261,581.43
  4. Step 4: Simplify right side
    422,674.50x = 152,593,652,749.59
  5. Step 5: Solve for x
    x = 152,593,652,749.59/422,674.50
  6. Step 6: Final answer
    x = 361,019.30

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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.