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Finding the Fourth Proportional to 451,231.17, 622,716.17 and 257,670.42

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Solution

The fourth proportional to 451,231.17, 622,716.17 and 257,670.42 is: 355,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,231.17 : 622,716.17 = 257,670.42 : x
  2. Step 2: Convert to fraction form
    451,231.17/622,716.17 = 257,670.42/x
  3. Step 3: Cross multiply
    451,231.17x = 622,716.17 × 257,670.42
  4. Step 4: Simplify right side
    451,231.17x = 160,455,537,064.69
  5. Step 5: Solve for x
    x = 160,455,537,064.69/451,231.17
  6. Step 6: Final answer
    x = 355,594.98

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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.