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Finding the Fourth Proportional to 264,981.17, 396,553.21 and 253,958.69

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Solution

The fourth proportional to 264,981.17, 396,553.21 and 253,958.69 is: 380,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,981.17 : 396,553.21 = 253,958.69 : x
  2. Step 2: Convert to fraction form
    264,981.17/396,553.21 = 253,958.69/x
  3. Step 3: Cross multiply
    264,981.17x = 396,553.21 × 253,958.69
  4. Step 4: Simplify right side
    264,981.17x = 100,708,133,726.90
  5. Step 5: Solve for x
    x = 100,708,133,726.90/264,981.17
  6. Step 6: Final answer
    x = 380,057.70

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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.