Home / 521,942.70-782,914.05-147,968.94

Finding the Fourth Proportional to 521,942.70, 782,914.05 and 147,968.94

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Solution

The fourth proportional to 521,942.70, 782,914.05 and 147,968.94 is: 221,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,942.70 : 782,914.05 = 147,968.94 : x
  2. Step 2: Convert to fraction form
    521,942.70/782,914.05 = 147,968.94/x
  3. Step 3: Cross multiply
    521,942.70x = 782,914.05 × 147,968.94
  4. Step 4: Simplify right side
    521,942.70x = 115,846,962,089.61
  5. Step 5: Solve for x
    x = 115,846,962,089.61/521,942.70
  6. Step 6: Final answer
    x = 221,953.41

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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.