Home / 436,896.20-655,344.30-394,905.80

Finding the Fourth Proportional to 436,896.20, 655,344.30 and 394,905.80

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Solution

The fourth proportional to 436,896.20, 655,344.30 and 394,905.80 is: 592,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,896.20 : 655,344.30 = 394,905.80 : x
  2. Step 2: Convert to fraction form
    436,896.20/655,344.30 = 394,905.80/x
  3. Step 3: Cross multiply
    436,896.20x = 655,344.30 × 394,905.80
  4. Step 4: Simplify right side
    436,896.20x = 258,799,265,066.94
  5. Step 5: Solve for x
    x = 258,799,265,066.94/436,896.20
  6. Step 6: Final answer
    x = 592,358.70

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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.