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Finding the Fourth Proportional to 996,660.80, 1,494,553.80 and 397,422.80

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Solution

The fourth proportional to 996,660.80, 1,494,553.80 and 397,422.80 is: 595,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,660.80 : 1,494,553.80 = 397,422.80 : x
  2. Step 2: Convert to fraction form
    996,660.80/1,494,553.80 = 397,422.80/x
  3. Step 3: Cross multiply
    996,660.80x = 1,494,553.80 × 397,422.80
  4. Step 4: Simplify right side
    996,660.80x = 593,969,755,946.64
  5. Step 5: Solve for x
    x = 593,969,755,946.64/996,660.80
  6. Step 6: Final answer
    x = 595,959.78

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Double scale
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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.