Home / 521,789.20-782,782.12-197,674.38

Finding the Fourth Proportional to 521,789.20, 782,782.12 and 197,674.38

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Solution

The fourth proportional to 521,789.20, 782,782.12 and 197,674.38 is: 296,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,789.20 : 782,782.12 = 197,674.38 : x
  2. Step 2: Convert to fraction form
    521,789.20/782,782.12 = 197,674.38/x
  3. Step 3: Cross multiply
    521,789.20x = 782,782.12 × 197,674.38
  4. Step 4: Simplify right side
    521,789.20x = 154,735,970,246.09
  5. Step 5: Solve for x
    x = 154,735,970,246.09/521,789.20
  6. Step 6: Final answer
    x = 296,548.82

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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.