Home / 419,941.40-629,912.10-383,199.80

Finding the Fourth Proportional to 419,941.40, 629,912.10 and 383,199.80

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Solution

The fourth proportional to 419,941.40, 629,912.10 and 383,199.80 is: 574,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,941.40 : 629,912.10 = 383,199.80 : x
  2. Step 2: Convert to fraction form
    419,941.40/629,912.10 = 383,199.80/x
  3. Step 3: Cross multiply
    419,941.40x = 629,912.10 × 383,199.80
  4. Step 4: Simplify right side
    419,941.40x = 241,382,190,737.58
  5. Step 5: Solve for x
    x = 241,382,190,737.58/419,941.40
  6. Step 6: Final answer
    x = 574,799.70

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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.