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Finding the Fourth Proportional to 463,695.57, 639,638.37 and 270,080.46

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Solution

The fourth proportional to 463,695.57, 639,638.37 and 270,080.46 is: 372,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,695.57 : 639,638.37 = 270,080.46 : x
  2. Step 2: Convert to fraction form
    463,695.57/639,638.37 = 270,080.46/x
  3. Step 3: Cross multiply
    463,695.57x = 639,638.37 × 270,080.46
  4. Step 4: Simplify right side
    463,695.57x = 172,753,825,203.25
  5. Step 5: Solve for x
    x = 172,753,825,203.25/463,695.57
  6. Step 6: Final answer
    x = 372,558.71

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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.