Home / 854,781.21-1,281,039.26-454,560.21

Finding the Fourth Proportional to 854,781.21, 1,281,039.26 and 454,560.21

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Solution

The fourth proportional to 854,781.21, 1,281,039.26 and 454,560.21 is: 681,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,781.21 : 1,281,039.26 = 454,560.21 : x
  2. Step 2: Convert to fraction form
    854,781.21/1,281,039.26 = 454,560.21/x
  3. Step 3: Cross multiply
    854,781.21x = 1,281,039.26 × 454,560.21
  4. Step 4: Simplify right side
    854,781.21x = 582,309,472,771.04
  5. Step 5: Solve for x
    x = 582,309,472,771.04/854,781.21
  6. Step 6: Final answer
    x = 681,238.04

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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.