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Finding the Fourth Proportional to 685,529.73, 946,025.73 and 379,604.88

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Solution

The fourth proportional to 685,529.73, 946,025.73 and 379,604.88 is: 523,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,529.73 : 946,025.73 = 379,604.88 : x
  2. Step 2: Convert to fraction form
    685,529.73/946,025.73 = 379,604.88/x
  3. Step 3: Cross multiply
    685,529.73x = 946,025.73 × 379,604.88
  4. Step 4: Simplify right side
    685,529.73x = 359,115,983,713.56
  5. Step 5: Solve for x
    x = 359,115,983,713.56/685,529.73
  6. Step 6: Final answer
    x = 523,851.80

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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.