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Finding the Fourth Proportional to 313,855.73, 433,115.79 and 170,619.38

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Solution

The fourth proportional to 313,855.73, 433,115.79 and 170,619.38 is: 235,451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,855.73 : 433,115.79 = 170,619.38 : x
  2. Step 2: Convert to fraction form
    313,855.73/433,115.79 = 170,619.38/x
  3. Step 3: Cross multiply
    313,855.73x = 433,115.79 × 170,619.38
  4. Step 4: Simplify right side
    313,855.73x = 73,897,945,392.43
  5. Step 5: Solve for x
    x = 73,897,945,392.43/313,855.73
  6. Step 6: Final answer
    x = 235,451.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.