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Finding the Fourth Proportional to 1,324,807.76, 1,981,107.48 and 983,894.96

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Solution

The fourth proportional to 1,324,807.76, 1,981,107.48 and 983,894.96 is: 1,471,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,807.76 : 1,981,107.48 = 983,894.96 : x
  2. Step 2: Convert to fraction form
    1,324,807.76/1,981,107.48 = 983,894.96/x
  3. Step 3: Cross multiply
    1,324,807.76x = 1,981,107.48 × 983,894.96
  4. Step 4: Simplify right side
    1,324,807.76x = 1,949,201,664,790.30
  5. Step 5: Solve for x
    x = 1,949,201,664,790.30/1,324,807.76
  6. Step 6: Final answer
    x = 1,471,309.06

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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.