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Finding the Fourth Proportional to 820,405.00, 1,228,836 and 800,328.34

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Solution

The fourth proportional to 820,405.00, 1,228,836 and 800,328.34 is: 1,198,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,405.00 : 1,228,836 = 800,328.34 : x
  2. Step 2: Convert to fraction form
    820,405.00/1,228,836 = 800,328.34/x
  3. Step 3: Cross multiply
    820,405.00x = 1,228,836 × 800,328.34
  4. Step 4: Simplify right side
    820,405.00x = 983,472,269,868.06
  5. Step 5: Solve for x
    x = 983,472,269,868.06/820,405.00
  6. Step 6: Final answer
    x = 1,198,764.36

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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.