Home / 303,839.20-455,758.80-82,223.20

Finding the Fourth Proportional to 303,839.20, 455,758.80 and 82,223.20

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Solution

The fourth proportional to 303,839.20, 455,758.80 and 82,223.20 is: 123,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,839.20 : 455,758.80 = 82,223.20 : x
  2. Step 2: Convert to fraction form
    303,839.20/455,758.80 = 82,223.20/x
  3. Step 3: Cross multiply
    303,839.20x = 455,758.80 × 82,223.20
  4. Step 4: Simplify right side
    303,839.20x = 37,473,946,964.16
  5. Step 5: Solve for x
    x = 37,473,946,964.16/303,839.20
  6. Step 6: Final answer
    x = 123,334.80

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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.