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Finding the Fourth Proportional to 313,912.89, 433,198.80 and 170,673.30

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Solution

The fourth proportional to 313,912.89, 433,198.80 and 170,673.30 is: 235,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,912.89 : 433,198.80 = 170,673.30 : x
  2. Step 2: Convert to fraction form
    313,912.89/433,198.80 = 170,673.30/x
  3. Step 3: Cross multiply
    313,912.89x = 433,198.80 × 170,673.30
  4. Step 4: Simplify right side
    313,912.89x = 73,935,468,752.04
  5. Step 5: Solve for x
    x = 73,935,468,752.04/313,912.89
  6. Step 6: Final answer
    x = 235,528.62

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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.