Home / 325,448.21-449,146.28-189,524.77

Finding the Fourth Proportional to 325,448.21, 449,146.28 and 189,524.77

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Solution

The fourth proportional to 325,448.21, 449,146.28 and 189,524.77 is: 261,560.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,448.21 : 449,146.28 = 189,524.77 : x
  2. Step 2: Convert to fraction form
    325,448.21/449,146.28 = 189,524.77/x
  3. Step 3: Cross multiply
    325,448.21x = 449,146.28 × 189,524.77
  4. Step 4: Simplify right side
    325,448.21x = 85,124,344,764.30
  5. Step 5: Solve for x
    x = 85,124,344,764.30/325,448.21
  6. Step 6: Final answer
    x = 261,560.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.