Home / 521,935.20-782,902.80-147,961.44

Finding the Fourth Proportional to 521,935.20, 782,902.80 and 147,961.44

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Solution

The fourth proportional to 521,935.20, 782,902.80 and 147,961.44 is: 221,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,935.20 : 782,902.80 = 147,961.44 : x
  2. Step 2: Convert to fraction form
    521,935.20/782,902.80 = 147,961.44/x
  3. Step 3: Cross multiply
    521,935.20x = 782,902.80 × 147,961.44
  4. Step 4: Simplify right side
    521,935.20x = 115,839,425,668.03
  5. Step 5: Solve for x
    x = 115,839,425,668.03/521,935.20
  6. Step 6: Final answer
    x = 221,942.16

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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.