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Finding the Fourth Proportional to 313,930.76, 433,212.50 and 170,690.92

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Solution

The fourth proportional to 313,930.76, 433,212.50 and 170,690.92 is: 235,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,930.76 : 433,212.50 = 170,690.92 : x
  2. Step 2: Convert to fraction form
    313,930.76/433,212.50 = 170,690.92/x
  3. Step 3: Cross multiply
    313,930.76x = 433,212.50 × 170,690.92
  4. Step 4: Simplify right side
    313,930.76x = 73,945,440,180.50
  5. Step 5: Solve for x
    x = 73,945,440,180.50/313,930.76
  6. Step 6: Final answer
    x = 235,546.97

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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.