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Finding the Fourth Proportional to 383,894.25, 529,943.94 and 247,994.46

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Solution

The fourth proportional to 383,894.25, 529,943.94 and 247,994.46 is: 342,342.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,894.25 : 529,943.94 = 247,994.46 : x
  2. Step 2: Convert to fraction form
    383,894.25/529,943.94 = 247,994.46/x
  3. Step 3: Cross multiply
    383,894.25x = 529,943.94 × 247,994.46
  4. Step 4: Simplify right side
    383,894.25x = 131,423,161,230.57
  5. Step 5: Solve for x
    x = 131,423,161,230.57/383,894.25
  6. Step 6: Final answer
    x = 342,342.09

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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.