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Finding the Fourth Proportional to 422,240.68, 582,692.34 and 231,266.08

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Solution

The fourth proportional to 422,240.68, 582,692.34 and 231,266.08 is: 319,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,240.68 : 582,692.34 = 231,266.08 : x
  2. Step 2: Convert to fraction form
    422,240.68/582,692.34 = 231,266.08/x
  3. Step 3: Cross multiply
    422,240.68x = 582,692.34 × 231,266.08
  4. Step 4: Simplify right side
    422,240.68x = 134,756,973,317.83
  5. Step 5: Solve for x
    x = 134,756,973,317.83/422,240.68
  6. Step 6: Final answer
    x = 319,147.30

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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.