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Finding the Fourth Proportional to 625,696.66, 863,450.13 and 353,759.86

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Solution

The fourth proportional to 625,696.66, 863,450.13 and 353,759.86 is: 488,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,696.66 : 863,450.13 = 353,759.86 : x
  2. Step 2: Convert to fraction form
    625,696.66/863,450.13 = 353,759.86/x
  3. Step 3: Cross multiply
    625,696.66x = 863,450.13 × 353,759.86
  4. Step 4: Simplify right side
    625,696.66x = 305,453,997,105.78
  5. Step 5: Solve for x
    x = 305,453,997,105.78/625,696.66
  6. Step 6: Final answer
    x = 488,182.24

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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.