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Finding the Fourth Proportional to 633,383.59, 874,052.62 and 361,446.61

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Solution

The fourth proportional to 633,383.59, 874,052.62 and 361,446.61 is: 498,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,383.59 : 874,052.62 = 361,446.61 : x
  2. Step 2: Convert to fraction form
    633,383.59/874,052.62 = 361,446.61/x
  3. Step 3: Cross multiply
    633,383.59x = 874,052.62 × 361,446.61
  4. Step 4: Simplify right side
    633,383.59x = 315,923,356,460.62
  5. Step 5: Solve for x
    x = 315,923,356,460.62/633,383.59
  6. Step 6: Final answer
    x = 498,786.77

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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.