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Finding the Fourth Proportional to 394,967.76, 544,821.52 and 242,074.56

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Solution

The fourth proportional to 394,967.76, 544,821.52 and 242,074.56 is: 333,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,967.76 : 544,821.52 = 242,074.56 : x
  2. Step 2: Convert to fraction form
    394,967.76/544,821.52 = 242,074.56/x
  3. Step 3: Cross multiply
    394,967.76x = 544,821.52 × 242,074.56
  4. Step 4: Simplify right side
    394,967.76x = 131,887,429,732.53
  5. Step 5: Solve for x
    x = 131,887,429,732.53/394,967.76
  6. Step 6: Final answer
    x = 333,919.48

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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.