Home / 1,226,186.80-1,839,280.20-339,722.80

Finding the Fourth Proportional to 1,226,186.80, 1,839,280.20 and 339,722.80

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Solution

The fourth proportional to 1,226,186.80, 1,839,280.20 and 339,722.80 is: 509,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,186.80 : 1,839,280.20 = 339,722.80 : x
  2. Step 2: Convert to fraction form
    1,226,186.80/1,839,280.20 = 339,722.80/x
  3. Step 3: Cross multiply
    1,226,186.80x = 1,839,280.20 × 339,722.80
  4. Step 4: Simplify right side
    1,226,186.80x = 624,845,419,528.56
  5. Step 5: Solve for x
    x = 624,845,419,528.56/1,226,186.80
  6. Step 6: Final answer
    x = 509,584.20

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Double scale
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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.