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Finding the Fourth Proportional to 341,536.80, 512,305.20 and 331,695.30

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Solution

The fourth proportional to 341,536.80, 512,305.20 and 331,695.30 is: 497,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,536.80 : 512,305.20 = 331,695.30 : x
  2. Step 2: Convert to fraction form
    341,536.80/512,305.20 = 331,695.30/x
  3. Step 3: Cross multiply
    341,536.80x = 512,305.20 × 331,695.30
  4. Step 4: Simplify right side
    341,536.80x = 169,929,227,005.56
  5. Step 5: Solve for x
    x = 169,929,227,005.56/341,536.80
  6. Step 6: Final answer
    x = 497,542.95

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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.