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Finding the Fourth Proportional to 422,118.72, 633,197.52 and 234,989.28

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Solution

The fourth proportional to 422,118.72, 633,197.52 and 234,989.28 is: 352,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,118.72 : 633,197.52 = 234,989.28 : x
  2. Step 2: Convert to fraction form
    422,118.72/633,197.52 = 234,989.28/x
  3. Step 3: Cross multiply
    422,118.72x = 633,197.52 × 234,989.28
  4. Step 4: Simplify right side
    422,118.72x = 148,794,629,322.59
  5. Step 5: Solve for x
    x = 148,794,629,322.59/422,118.72
  6. Step 6: Final answer
    x = 352,494.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.