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Finding the Fourth Proportional to 447,600.63, 617,741.61 and 251,399.46

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Solution

The fourth proportional to 447,600.63, 617,741.61 and 251,399.46 is: 346,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,600.63 : 617,741.61 = 251,399.46 : x
  2. Step 2: Convert to fraction form
    447,600.63/617,741.61 = 251,399.46/x
  3. Step 3: Cross multiply
    447,600.63x = 617,741.61 × 251,399.46
  4. Step 4: Simplify right side
    447,600.63x = 155,299,907,173.53
  5. Step 5: Solve for x
    x = 155,299,907,173.53/447,600.63
  6. Step 6: Final answer
    x = 346,960.88

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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.