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Finding the Fourth Proportional to 417,406.62, 625,556.34 and 217,894.82

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Solution

The fourth proportional to 417,406.62, 625,556.34 and 217,894.82 is: 326,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,406.62 : 625,556.34 = 217,894.82 : x
  2. Step 2: Convert to fraction form
    417,406.62/625,556.34 = 217,894.82/x
  3. Step 3: Cross multiply
    417,406.62x = 625,556.34 × 217,894.82
  4. Step 4: Simplify right side
    417,406.62x = 136,305,486,104.16
  5. Step 5: Solve for x
    x = 136,305,486,104.16/417,406.62
  6. Step 6: Final answer
    x = 326,553.24

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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.