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Finding the Fourth Proportional to 1,976,246.40, 2,964,545.10 and 823,238.40

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Solution

The fourth proportional to 1,976,246.40, 2,964,545.10 and 823,238.40 is: 1,234,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,246.40 : 2,964,545.10 = 823,238.40 : x
  2. Step 2: Convert to fraction form
    1,976,246.40/2,964,545.10 = 823,238.40/x
  3. Step 3: Cross multiply
    1,976,246.40x = 2,964,545.10 × 823,238.40
  4. Step 4: Simplify right side
    1,976,246.40x = 2,440,527,364,851.84
  5. Step 5: Solve for x
    x = 2,440,527,364,851.84/1,976,246.40
  6. Step 6: Final answer
    x = 1,234,930.71

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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.