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Finding the Fourth Proportional to 625,738.58, 863,537.46 and 353,800.64

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Solution

The fourth proportional to 625,738.58, 863,537.46 and 353,800.64 is: 488,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,738.58 : 863,537.46 = 353,800.64 : x
  2. Step 2: Convert to fraction form
    625,738.58/863,537.46 = 353,800.64/x
  3. Step 3: Cross multiply
    625,738.58x = 863,537.46 × 353,800.64
  4. Step 4: Simplify right side
    625,738.58x = 305,520,106,011.97
  5. Step 5: Solve for x
    x = 305,520,106,011.97/625,738.58
  6. Step 6: Final answer
    x = 488,255.18

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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.