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Finding the Fourth Proportional to 452,367.63, 677,517.89 and 215,876.39

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Solution

The fourth proportional to 452,367.63, 677,517.89 and 215,876.39 is: 323,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,367.63 : 677,517.89 = 215,876.39 : x
  2. Step 2: Convert to fraction form
    452,367.63/677,517.89 = 215,876.39/x
  3. Step 3: Cross multiply
    452,367.63x = 677,517.89 × 215,876.39
  4. Step 4: Simplify right side
    452,367.63x = 146,260,111,786.65
  5. Step 5: Solve for x
    x = 146,260,111,786.65/452,367.63
  6. Step 6: Final answer
    x = 323,321.35

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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.