Home / 454,018.20-681,027.30-398,722.20

Finding the Fourth Proportional to 454,018.20, 681,027.30 and 398,722.20

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Solution

The fourth proportional to 454,018.20, 681,027.30 and 398,722.20 is: 598,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,018.20 : 681,027.30 = 398,722.20 : x
  2. Step 2: Convert to fraction form
    454,018.20/681,027.30 = 398,722.20/x
  3. Step 3: Cross multiply
    454,018.20x = 681,027.30 × 398,722.20
  4. Step 4: Simplify right side
    454,018.20x = 271,540,703,316.06
  5. Step 5: Solve for x
    x = 271,540,703,316.06/454,018.20
  6. Step 6: Final answer
    x = 598,083.30

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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.