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Finding the Fourth Proportional to 263,331.52, 394,945.44 and 97,080.64

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Solution

The fourth proportional to 263,331.52, 394,945.44 and 97,080.64 is: 145,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,331.52 : 394,945.44 = 97,080.64 : x
  2. Step 2: Convert to fraction form
    263,331.52/394,945.44 = 97,080.64/x
  3. Step 3: Cross multiply
    263,331.52x = 394,945.44 × 97,080.64
  4. Step 4: Simplify right side
    263,331.52x = 38,341,556,080.28
  5. Step 5: Solve for x
    x = 38,341,556,080.28/263,331.52
  6. Step 6: Final answer
    x = 145,601.85

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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.