Home / 263,323.08-394,944.06-85,829.64

Finding the Fourth Proportional to 263,323.08, 394,944.06 and 85,829.64

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Solution

The fourth proportional to 263,323.08, 394,944.06 and 85,829.64 is: 128,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,323.08 : 394,944.06 = 85,829.64 : x
  2. Step 2: Convert to fraction form
    263,323.08/394,944.06 = 85,829.64/x
  3. Step 3: Cross multiply
    263,323.08x = 394,944.06 × 85,829.64
  4. Step 4: Simplify right side
    263,323.08x = 33,897,906,489.94
  5. Step 5: Solve for x
    x = 33,897,906,489.94/263,323.08
  6. Step 6: Final answer
    x = 128,731.24

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1.5x scale

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.