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Finding the Fourth Proportional to 493,433.62, 680,938.41 and 267,079.30

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Solution

The fourth proportional to 493,433.62, 680,938.41 and 267,079.30 is: 368,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,433.62 : 680,938.41 = 267,079.30 : x
  2. Step 2: Convert to fraction form
    493,433.62/680,938.41 = 267,079.30/x
  3. Step 3: Cross multiply
    493,433.62x = 680,938.41 × 267,079.30
  4. Step 4: Simplify right side
    493,433.62x = 181,864,553,885.91
  5. Step 5: Solve for x
    x = 181,864,553,885.91/493,433.62
  6. Step 6: Final answer
    x = 368,569.44

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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.