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Finding the Fourth Proportional to 667,686.84, 1,000,830.42 and 246,694.20

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Solution

The fourth proportional to 667,686.84, 1,000,830.42 and 246,694.20 is: 369,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,686.84 : 1,000,830.42 = 246,694.20 : x
  2. Step 2: Convert to fraction form
    667,686.84/1,000,830.42 = 246,694.20/x
  3. Step 3: Cross multiply
    667,686.84x = 1,000,830.42 × 246,694.20
  4. Step 4: Simplify right side
    667,686.84x = 246,899,059,797.56
  5. Step 5: Solve for x
    x = 246,899,059,797.56/667,686.84
  6. Step 6: Final answer
    x = 369,782.73

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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.