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Finding the Fourth Proportional to 422,540.01, 583,119.45 and 231,551.73

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Solution

The fourth proportional to 422,540.01, 583,119.45 and 231,551.73 is: 319,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,540.01 : 583,119.45 = 231,551.73 : x
  2. Step 2: Convert to fraction form
    422,540.01/583,119.45 = 231,551.73/x
  3. Step 3: Cross multiply
    422,540.01x = 583,119.45 × 231,551.73
  4. Step 4: Simplify right side
    422,540.01x = 135,022,317,444.15
  5. Step 5: Solve for x
    x = 135,022,317,444.15/422,540.01
  6. Step 6: Final answer
    x = 319,549.19

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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.