Home / 521,544.20-782,316.30-205,838.60

Finding the Fourth Proportional to 521,544.20, 782,316.30 and 205,838.60

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Solution

The fourth proportional to 521,544.20, 782,316.30 and 205,838.60 is: 308,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,544.20 : 782,316.30 = 205,838.60 : x
  2. Step 2: Convert to fraction form
    521,544.20/782,316.30 = 205,838.60/x
  3. Step 3: Cross multiply
    521,544.20x = 782,316.30 × 205,838.60
  4. Step 4: Simplify right side
    521,544.20x = 161,030,891,949.18
  5. Step 5: Solve for x
    x = 161,030,891,949.18/521,544.20
  6. Step 6: Final answer
    x = 308,757.90

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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.