Home / 863,623.23-1,296,557.40-664,083.73

Finding the Fourth Proportional to 863,623.23, 1,296,557.40 and 664,083.73

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Solution

The fourth proportional to 863,623.23, 1,296,557.40 and 664,083.73 is: 996,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,623.23 : 1,296,557.40 = 664,083.73 : x
  2. Step 2: Convert to fraction form
    863,623.23/1,296,557.40 = 664,083.73/x
  3. Step 3: Cross multiply
    863,623.23x = 1,296,557.40 × 664,083.73
  4. Step 4: Simplify right side
    863,623.23x = 861,022,674,351.10
  5. Step 5: Solve for x
    x = 861,022,674,351.10/863,623.23
  6. Step 6: Final answer
    x = 996,988.78

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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.