Home / 826,640.55-1,239,960.83-543,205.35

Finding the Fourth Proportional to 826,640.55, 1,239,960.83 and 543,205.35

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Solution

The fourth proportional to 826,640.55, 1,239,960.83 and 543,205.35 is: 814,808.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,640.55 : 1,239,960.83 = 543,205.35 : x
  2. Step 2: Convert to fraction form
    826,640.55/1,239,960.83 = 543,205.35/x
  3. Step 3: Cross multiply
    826,640.55x = 1,239,960.83 × 543,205.35
  4. Step 4: Simplify right side
    826,640.55x = 673,553,353,930.41
  5. Step 5: Solve for x
    x = 673,553,353,930.41/826,640.55
  6. Step 6: Final answer
    x = 814,808.03

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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.