Home / 521,592.20-781,805.10-222,021.80

Finding the Fourth Proportional to 521,592.20, 781,805.10 and 222,021.80

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Solution

The fourth proportional to 521,592.20, 781,805.10 and 222,021.80 is: 332,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,592.20 : 781,805.10 = 222,021.80 : x
  2. Step 2: Convert to fraction form
    521,592.20/781,805.10 = 222,021.80/x
  3. Step 3: Cross multiply
    521,592.20x = 781,805.10 × 222,021.80
  4. Step 4: Simplify right side
    521,592.20x = 173,577,775,551.18
  5. Step 5: Solve for x
    x = 173,577,775,551.18/521,592.20
  6. Step 6: Final answer
    x = 332,784.45

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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.