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Finding the Fourth Proportional to 299,240.57, 412,578.47 and 191,633.69

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Solution

The fourth proportional to 299,240.57, 412,578.47 and 191,633.69 is: 264,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,240.57 : 412,578.47 = 191,633.69 : x
  2. Step 2: Convert to fraction form
    299,240.57/412,578.47 = 191,633.69/x
  3. Step 3: Cross multiply
    299,240.57x = 412,578.47 × 191,633.69
  4. Step 4: Simplify right side
    299,240.57x = 79,063,934,620.65
  5. Step 5: Solve for x
    x = 79,063,934,620.65/299,240.57
  6. Step 6: Final answer
    x = 264,215.29

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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.