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Finding the Fourth Proportional to 422,785.09, 583,361.26 and 250,671.25

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Solution

The fourth proportional to 422,785.09, 583,361.26 and 250,671.25 is: 345,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,785.09 : 583,361.26 = 250,671.25 : x
  2. Step 2: Convert to fraction form
    422,785.09/583,361.26 = 250,671.25/x
  3. Step 3: Cross multiply
    422,785.09x = 583,361.26 × 250,671.25
  4. Step 4: Simplify right side
    422,785.09x = 146,231,896,245.78
  5. Step 5: Solve for x
    x = 146,231,896,245.78/422,785.09
  6. Step 6: Final answer
    x = 345,877.61

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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.