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Finding the Fourth Proportional to 331,003.26, 456,793.38 and 187,784.82

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Solution

The fourth proportional to 331,003.26, 456,793.38 and 187,784.82 is: 259,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,003.26 : 456,793.38 = 187,784.82 : x
  2. Step 2: Convert to fraction form
    331,003.26/456,793.38 = 187,784.82/x
  3. Step 3: Cross multiply
    331,003.26x = 456,793.38 × 187,784.82
  4. Step 4: Simplify right side
    331,003.26x = 85,778,862,640.49
  5. Step 5: Solve for x
    x = 85,778,862,640.49/331,003.26
  6. Step 6: Final answer
    x = 259,148.09

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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.