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Finding the Fourth Proportional to 341,691.80, 512,537.70 and 267,042.20

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Solution

The fourth proportional to 341,691.80, 512,537.70 and 267,042.20 is: 400,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,691.80 : 512,537.70 = 267,042.20 : x
  2. Step 2: Convert to fraction form
    341,691.80/512,537.70 = 267,042.20/x
  3. Step 3: Cross multiply
    341,691.80x = 512,537.70 × 267,042.20
  4. Step 4: Simplify right side
    341,691.80x = 136,869,194,990.94
  5. Step 5: Solve for x
    x = 136,869,194,990.94/341,691.80
  6. Step 6: Final answer
    x = 400,563.30

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1.5x scale

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.