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Finding the Fourth Proportional to 416,791.72, 575,175.34 and 225,805.11

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Solution

The fourth proportional to 416,791.72, 575,175.34 and 225,805.11 is: 311,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,791.72 : 575,175.34 = 225,805.11 : x
  2. Step 2: Convert to fraction form
    416,791.72/575,175.34 = 225,805.11/x
  3. Step 3: Cross multiply
    416,791.72x = 575,175.34 × 225,805.11
  4. Step 4: Simplify right side
    416,791.72x = 129,877,530,917.99
  5. Step 5: Solve for x
    x = 129,877,530,917.99/416,791.72
  6. Step 6: Final answer
    x = 311,612.55

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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.