Home / 521,569.30-782,645.55-221,998.90

Finding the Fourth Proportional to 521,569.30, 782,645.55 and 221,998.90

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Solution

The fourth proportional to 521,569.30, 782,645.55 and 221,998.90 is: 333,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,569.30 : 782,645.55 = 221,998.90 : x
  2. Step 2: Convert to fraction form
    521,569.30/782,645.55 = 221,998.90/x
  3. Step 3: Cross multiply
    521,569.30x = 782,645.55 × 221,998.90
  4. Step 4: Simplify right side
    521,569.30x = 173,746,451,189.90
  5. Step 5: Solve for x
    x = 173,746,451,189.90/521,569.30
  6. Step 6: Final answer
    x = 333,122.47

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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.