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Finding the Fourth Proportional to 447,606, 617,696.28 and 256,682.52

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Solution

The fourth proportional to 447,606, 617,696.28 and 256,682.52 is: 354,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,606 : 617,696.28 = 256,682.52 : x
  2. Step 2: Convert to fraction form
    447,606/617,696.28 = 256,682.52/x
  3. Step 3: Cross multiply
    447,606x = 617,696.28 × 256,682.52
  4. Step 4: Simplify right side
    447,606x = 158,551,837,745.03
  5. Step 5: Solve for x
    x = 158,551,837,745.03/447,606
  6. Step 6: Final answer
    x = 354,221.88

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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.