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Finding the Fourth Proportional to 633,076.70, 873,729.05 and 361,082.25

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Solution

The fourth proportional to 633,076.70, 873,729.05 and 361,082.25 is: 498,340.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,076.70 : 873,729.05 = 361,082.25 : x
  2. Step 2: Convert to fraction form
    633,076.70/873,729.05 = 361,082.25/x
  3. Step 3: Cross multiply
    633,076.70x = 873,729.05 × 361,082.25
  4. Step 4: Simplify right side
    633,076.70x = 315,488,048,628.69
  5. Step 5: Solve for x
    x = 315,488,048,628.69/633,076.70
  6. Step 6: Final answer
    x = 498,340.95

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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.