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Finding the Fourth Proportional to 455,777.17, 628,940.17 and 251,825.86

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Solution

The fourth proportional to 455,777.17, 628,940.17 and 251,825.86 is: 347,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,777.17 : 628,940.17 = 251,825.86 : x
  2. Step 2: Convert to fraction form
    455,777.17/628,940.17 = 251,825.86/x
  3. Step 3: Cross multiply
    455,777.17x = 628,940.17 × 251,825.86
  4. Step 4: Simplify right side
    455,777.17x = 158,383,399,198.80
  5. Step 5: Solve for x
    x = 158,383,399,198.80/455,777.17
  6. Step 6: Final answer
    x = 347,501.83

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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.