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Finding the Fourth Proportional to 331,010.52, 456,793.26 and 187,798.20

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Solution

The fourth proportional to 331,010.52, 456,793.26 and 187,798.20 is: 259,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,010.52 : 456,793.26 = 187,798.20 : x
  2. Step 2: Convert to fraction form
    331,010.52/456,793.26 = 187,798.20/x
  3. Step 3: Cross multiply
    331,010.52x = 456,793.26 × 187,798.20
  4. Step 4: Simplify right side
    331,010.52x = 85,784,952,000.13
  5. Step 5: Solve for x
    x = 85,784,952,000.13/331,010.52
  6. Step 6: Final answer
    x = 259,160.80

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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.