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Finding the Fourth Proportional to 641,852.77, 962,418.98 and 439,677.39

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Solution

The fourth proportional to 641,852.77, 962,418.98 and 439,677.39 is: 659,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,852.77 : 962,418.98 = 439,677.39 : x
  2. Step 2: Convert to fraction form
    641,852.77/962,418.98 = 439,677.39/x
  3. Step 3: Cross multiply
    641,852.77x = 962,418.98 × 439,677.39
  4. Step 4: Simplify right side
    641,852.77x = 423,153,858,202.38
  5. Step 5: Solve for x
    x = 423,153,858,202.38/641,852.77
  6. Step 6: Final answer
    x = 659,269.35

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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.