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Finding the Fourth Proportional to 447,469.49, 617,368.56 and 253,845.07

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Solution

The fourth proportional to 447,469.49, 617,368.56 and 253,845.07 is: 350,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,469.49 : 617,368.56 = 253,845.07 : x
  2. Step 2: Convert to fraction form
    447,469.49/617,368.56 = 253,845.07/x
  3. Step 3: Cross multiply
    447,469.49x = 617,368.56 × 253,845.07
  4. Step 4: Simplify right side
    447,469.49x = 156,715,965,329.00
  5. Step 5: Solve for x
    x = 156,715,965,329.00/447,469.49
  6. Step 6: Final answer
    x = 350,227.15

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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.