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Finding the Fourth Proportional to 279,228.89, 415,685.19 and 277,568.15

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Solution

The fourth proportional to 279,228.89, 415,685.19 and 277,568.15 is: 413,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,228.89 : 415,685.19 = 277,568.15 : x
  2. Step 2: Convert to fraction form
    279,228.89/415,685.19 = 277,568.15/x
  3. Step 3: Cross multiply
    279,228.89x = 415,685.19 × 277,568.15
  4. Step 4: Simplify right side
    279,228.89x = 115,380,969,170.70
  5. Step 5: Solve for x
    x = 115,380,969,170.70/279,228.89
  6. Step 6: Final answer
    x = 413,212.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.