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Finding the Fourth Proportional to 322,056.86, 482,560.36 and 255,134.66

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Solution

The fourth proportional to 322,056.86, 482,560.36 and 255,134.66 is: 382,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,056.86 : 482,560.36 = 255,134.66 : x
  2. Step 2: Convert to fraction form
    322,056.86/482,560.36 = 255,134.66/x
  3. Step 3: Cross multiply
    322,056.86x = 482,560.36 × 255,134.66
  4. Step 4: Simplify right side
    322,056.86x = 123,117,873,378.08
  5. Step 5: Solve for x
    x = 123,117,873,378.08/322,056.86
  6. Step 6: Final answer
    x = 382,286.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.