Home / 263,643.62-396,588-238,981.48

Finding the Fourth Proportional to 263,643.62, 396,588 and 238,981.48

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Solution

The fourth proportional to 263,643.62, 396,588 and 238,981.48 is: 359,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,643.62 : 396,588 = 238,981.48 : x
  2. Step 2: Convert to fraction form
    263,643.62/396,588 = 238,981.48/x
  3. Step 3: Cross multiply
    263,643.62x = 396,588 × 238,981.48
  4. Step 4: Simplify right side
    263,643.62x = 94,777,187,190.24
  5. Step 5: Solve for x
    x = 94,777,187,190.24/263,643.62
  6. Step 6: Final answer
    x = 359,489.78

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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.