Home / 521,768.20-782,360.70-222,197.80

Finding the Fourth Proportional to 521,768.20, 782,360.70 and 222,197.80

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Solution

The fourth proportional to 521,768.20, 782,360.70 and 222,197.80 is: 333,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,768.20 : 782,360.70 = 222,197.80 : x
  2. Step 2: Convert to fraction form
    521,768.20/782,360.70 = 222,197.80/x
  3. Step 3: Cross multiply
    521,768.20x = 782,360.70 × 222,197.80
  4. Step 4: Simplify right side
    521,768.20x = 173,838,826,346.46
  5. Step 5: Solve for x
    x = 173,838,826,346.46/521,768.20
  6. Step 6: Final answer
    x = 333,172.52

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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.