Home / 454,515.88-681,899.91-198,370.81

Finding the Fourth Proportional to 454,515.88, 681,899.91 and 198,370.81

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Solution

The fourth proportional to 454,515.88, 681,899.91 and 198,370.81 is: 297,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,515.88 : 681,899.91 = 198,370.81 : x
  2. Step 2: Convert to fraction form
    454,515.88/681,899.91 = 198,370.81/x
  3. Step 3: Cross multiply
    454,515.88x = 681,899.91 × 198,370.81
  4. Step 4: Simplify right side
    454,515.88x = 135,269,037,485.63
  5. Step 5: Solve for x
    x = 135,269,037,485.63/454,515.88
  6. Step 6: Final answer
    x = 297,611.25

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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.