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Finding the Fourth Proportional to 279,609.24, 419,411.82 and 167,320.56

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Solution

The fourth proportional to 279,609.24, 419,411.82 and 167,320.56 is: 250,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,609.24 : 419,411.82 = 167,320.56 : x
  2. Step 2: Convert to fraction form
    279,609.24/419,411.82 = 167,320.56/x
  3. Step 3: Cross multiply
    279,609.24x = 419,411.82 × 167,320.56
  4. Step 4: Simplify right side
    279,609.24x = 70,176,220,593.02
  5. Step 5: Solve for x
    x = 70,176,220,593.02/279,609.24
  6. Step 6: Final answer
    x = 250,979.62

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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.