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Finding the Fourth Proportional to 1,945,724.43, 2,916,555.44 and 665,954.94

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Solution

The fourth proportional to 1,945,724.43, 2,916,555.44 and 665,954.94 is: 998,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,724.43 : 2,916,555.44 = 665,954.94 : x
  2. Step 2: Convert to fraction form
    1,945,724.43/2,916,555.44 = 665,954.94/x
  3. Step 3: Cross multiply
    1,945,724.43x = 2,916,555.44 × 665,954.94
  4. Step 4: Simplify right side
    1,945,724.43x = 1,942,294,499,722.10
  5. Step 5: Solve for x
    x = 1,942,294,499,722.10/1,945,724.43
  6. Step 6: Final answer
    x = 998,237.20

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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.