Home / 863,615.56-1,296,545.86-664,076.06

Finding the Fourth Proportional to 863,615.56, 1,296,545.86 and 664,076.06

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Solution

The fourth proportional to 863,615.56, 1,296,545.86 and 664,076.06 is: 996,977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,615.56 : 1,296,545.86 = 664,076.06 : x
  2. Step 2: Convert to fraction form
    863,615.56/1,296,545.86 = 664,076.06/x
  3. Step 3: Cross multiply
    863,615.56x = 1,296,545.86 × 664,076.06
  4. Step 4: Simplify right side
    863,615.56x = 861,005,066,318.11
  5. Step 5: Solve for x
    x = 861,005,066,318.11/863,615.56
  6. Step 6: Final answer
    x = 996,977.26

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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.