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Finding the Fourth Proportional to 633,072.19, 873,722.82 and 361,077.73

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Solution

The fourth proportional to 633,072.19, 873,722.82 and 361,077.73 is: 498,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,072.19 : 873,722.82 = 361,077.73 : x
  2. Step 2: Convert to fraction form
    633,072.19/873,722.82 = 361,077.73/x
  3. Step 3: Cross multiply
    633,072.19x = 873,722.82 × 361,077.73
  4. Step 4: Simplify right side
    633,072.19x = 315,481,852,324.33
  5. Step 5: Solve for x
    x = 315,481,852,324.33/633,072.19
  6. Step 6: Final answer
    x = 498,334.72

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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.