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Finding the Fourth Proportional to 383,744.39, 529,571.12 and 211,669.71

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Solution

The fourth proportional to 383,744.39, 529,571.12 and 211,669.71 is: 292,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,744.39 : 529,571.12 = 211,669.71 : x
  2. Step 2: Convert to fraction form
    383,744.39/529,571.12 = 211,669.71/x
  3. Step 3: Cross multiply
    383,744.39x = 529,571.12 × 211,669.71
  4. Step 4: Simplify right side
    383,744.39x = 112,094,162,350.54
  5. Step 5: Solve for x
    x = 112,094,162,350.54/383,744.39
  6. Step 6: Final answer
    x = 292,106.33

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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.