Home / 419,736.40-629,758.20-170,443.60

Finding the Fourth Proportional to 419,736.40, 629,758.20 and 170,443.60

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Solution

The fourth proportional to 419,736.40, 629,758.20 and 170,443.60 is: 255,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,736.40 : 629,758.20 = 170,443.60 : x
  2. Step 2: Convert to fraction form
    419,736.40/629,758.20 = 170,443.60/x
  3. Step 3: Cross multiply
    419,736.40x = 629,758.20 × 170,443.60
  4. Step 4: Simplify right side
    419,736.40x = 107,338,254,737.52
  5. Step 5: Solve for x
    x = 107,338,254,737.52/419,736.40
  6. Step 6: Final answer
    x = 255,727.77

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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.