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Finding the Fourth Proportional to 615,960.46, 923,940.84 and 231,781.66

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Solution

The fourth proportional to 615,960.46, 923,940.84 and 231,781.66 is: 347,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,960.46 : 923,940.84 = 231,781.66 : x
  2. Step 2: Convert to fraction form
    615,960.46/923,940.84 = 231,781.66/x
  3. Step 3: Cross multiply
    615,960.46x = 923,940.84 × 231,781.66
  4. Step 4: Simplify right side
    615,960.46x = 214,152,541,636.99
  5. Step 5: Solve for x
    x = 214,152,541,636.99/615,960.46
  6. Step 6: Final answer
    x = 347,672.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.