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Finding the Fourth Proportional to 494,411.68, 682,289.60 and 268,057.28

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Solution

The fourth proportional to 494,411.68, 682,289.60 and 268,057.28 is: 369,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,411.68 : 682,289.60 = 268,057.28 : x
  2. Step 2: Convert to fraction form
    494,411.68/682,289.60 = 268,057.28/x
  3. Step 3: Cross multiply
    494,411.68x = 682,289.60 × 268,057.28
  4. Step 4: Simplify right side
    494,411.68x = 182,892,694,348.29
  5. Step 5: Solve for x
    x = 182,892,694,348.29/494,411.68
  6. Step 6: Final answer
    x = 369,919.85

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1.5x scale

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.