Home / 603,614,711.40-905,422,067.10-419,948,701.80

Finding the Fourth Proportional to 603,614,711.40, 905,422,067.10 and 419,948,701.80

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Solution

The fourth proportional to 603,614,711.40, 905,422,067.10 and 419,948,701.80 is: 629,923,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,614,711.40 : 905,422,067.10 = 419,948,701.80 : x
  2. Step 2: Convert to fraction form
    603,614,711.40/905,422,067.10 = 419,948,701.80/x
  3. Step 3: Cross multiply
    603,614,711.40x = 905,422,067.10 × 419,948,701.80
  4. Step 4: Simplify right side
    603,614,711.40x = 380,230,821,659,717,504
  5. Step 5: Solve for x
    x = 380,230,821,659,717,504/603,614,711.40
  6. Step 6: Final answer
    x = 629,923,052.70

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Double scale
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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.