Home / 263,072.10-394,649.52-85,537.59

Finding the Fourth Proportional to 263,072.10, 394,649.52 and 85,537.59

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Solution

The fourth proportional to 263,072.10, 394,649.52 and 85,537.59 is: 128,319.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,072.10 : 394,649.52 = 85,537.59 : x
  2. Step 2: Convert to fraction form
    263,072.10/394,649.52 = 85,537.59/x
  3. Step 3: Cross multiply
    263,072.10x = 394,649.52 × 85,537.59
  4. Step 4: Simplify right side
    263,072.10x = 33,757,368,835.46
  5. Step 5: Solve for x
    x = 33,757,368,835.46/263,072.10
  6. Step 6: Final answer
    x = 128,319.84

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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.