Home / 518,171.45-777,257.18-202,406.92

Finding the Fourth Proportional to 518,171.45, 777,257.18 and 202,406.92

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Solution

The fourth proportional to 518,171.45, 777,257.18 and 202,406.92 is: 303,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,171.45 : 777,257.18 = 202,406.92 : x
  2. Step 2: Convert to fraction form
    518,171.45/777,257.18 = 202,406.92/x
  3. Step 3: Cross multiply
    518,171.45x = 777,257.18 × 202,406.92
  4. Step 4: Simplify right side
    518,171.45x = 157,322,231,851.69
  5. Step 5: Solve for x
    x = 157,322,231,851.69/518,171.45
  6. Step 6: Final answer
    x = 303,610.38

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Similar ratio
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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.