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Finding the Fourth Proportional to 417,436.22, 625,319.62 and 192,488.69

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Solution

The fourth proportional to 417,436.22, 625,319.62 and 192,488.69 is: 288,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,436.22 : 625,319.62 = 192,488.69 : x
  2. Step 2: Convert to fraction form
    417,436.22/625,319.62 = 192,488.69/x
  3. Step 3: Cross multiply
    417,436.22x = 625,319.62 × 192,488.69
  4. Step 4: Simplify right side
    417,436.22x = 120,366,954,485.10
  5. Step 5: Solve for x
    x = 120,366,954,485.10/417,436.22
  6. Step 6: Final answer
    x = 288,348.13

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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.