Home / 521,819.20-782,145.60-222,248.80

Finding the Fourth Proportional to 521,819.20, 782,145.60 and 222,248.80

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Solution

The fourth proportional to 521,819.20, 782,145.60 and 222,248.80 is: 333,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,819.20 : 782,145.60 = 222,248.80 : x
  2. Step 2: Convert to fraction form
    521,819.20/782,145.60 = 222,248.80/x
  3. Step 3: Cross multiply
    521,819.20x = 782,145.60 × 222,248.80
  4. Step 4: Simplify right side
    521,819.20x = 173,830,921,025.28
  5. Step 5: Solve for x
    x = 173,830,921,025.28/521,819.20
  6. Step 6: Final answer
    x = 333,124.81

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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.