Home / 863,739.78-1,191,957.90-481,766.28

Finding the Fourth Proportional to 863,739.78, 1,191,957.90 and 481,766.28

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Solution

The fourth proportional to 863,739.78, 1,191,957.90 and 481,766.28 is: 664,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,739.78 : 1,191,957.90 = 481,766.28 : x
  2. Step 2: Convert to fraction form
    863,739.78/1,191,957.90 = 481,766.28/x
  3. Step 3: Cross multiply
    863,739.78x = 1,191,957.90 × 481,766.28
  4. Step 4: Simplify right side
    863,739.78x = 574,245,123,399.61
  5. Step 5: Solve for x
    x = 574,245,123,399.61/863,739.78
  6. Step 6: Final answer
    x = 664,835.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.