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Finding the Fourth Proportional to 376,294.44, 519,251.94 and 215,144.40

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Solution

The fourth proportional to 376,294.44, 519,251.94 and 215,144.40 is: 296,879.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,294.44 : 519,251.94 = 215,144.40 : x
  2. Step 2: Convert to fraction form
    376,294.44/519,251.94 = 215,144.40/x
  3. Step 3: Cross multiply
    376,294.44x = 519,251.94 × 215,144.40
  4. Step 4: Simplify right side
    376,294.44x = 111,714,147,080.14
  5. Step 5: Solve for x
    x = 111,714,147,080.14/376,294.44
  6. Step 6: Final answer
    x = 296,879.61

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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.