Home / 521,723.70-782,585.55-206,018.10

Finding the Fourth Proportional to 521,723.70, 782,585.55 and 206,018.10

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Solution

The fourth proportional to 521,723.70, 782,585.55 and 206,018.10 is: 309,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,723.70 : 782,585.55 = 206,018.10 : x
  2. Step 2: Convert to fraction form
    521,723.70/782,585.55 = 206,018.10/x
  3. Step 3: Cross multiply
    521,723.70x = 782,585.55 × 206,018.10
  4. Step 4: Simplify right side
    521,723.70x = 161,226,788,098.46
  5. Step 5: Solve for x
    x = 161,226,788,098.46/521,723.70
  6. Step 6: Final answer
    x = 309,027.15

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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.