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Finding the Fourth Proportional to 996,491.80, 1,494,737.70 and 697,310.20

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Solution

The fourth proportional to 996,491.80, 1,494,737.70 and 697,310.20 is: 1,045,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,491.80 : 1,494,737.70 = 697,310.20 : x
  2. Step 2: Convert to fraction form
    996,491.80/1,494,737.70 = 697,310.20/x
  3. Step 3: Cross multiply
    996,491.80x = 1,494,737.70 × 697,310.20
  4. Step 4: Simplify right side
    996,491.80x = 1,042,295,844,534.54
  5. Step 5: Solve for x
    x = 1,042,295,844,534.54/996,491.80
  6. Step 6: Final answer
    x = 1,045,965.30

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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.