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Finding the Fourth Proportional to 625,769.55, 863,556.77 and 353,890.82

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Solution

The fourth proportional to 625,769.55, 863,556.77 and 353,890.82 is: 488,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,769.55 : 863,556.77 = 353,890.82 : x
  2. Step 2: Convert to fraction form
    625,769.55/863,556.77 = 353,890.82/x
  3. Step 3: Cross multiply
    625,769.55x = 863,556.77 × 353,890.82
  4. Step 4: Simplify right side
    625,769.55x = 305,604,807,364.61
  5. Step 5: Solve for x
    x = 305,604,807,364.61/625,769.55
  6. Step 6: Final answer
    x = 488,366.38

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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.