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Finding the Fourth Proportional to 452,604.30, 678,906.35 and 115,645.58

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Solution

The fourth proportional to 452,604.30, 678,906.35 and 115,645.58 is: 173,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,604.30 : 678,906.35 = 115,645.58 : x
  2. Step 2: Convert to fraction form
    452,604.30/678,906.35 = 115,645.58/x
  3. Step 3: Cross multiply
    452,604.30x = 678,906.35 × 115,645.58
  4. Step 4: Simplify right side
    452,604.30x = 78,512,518,033.21
  5. Step 5: Solve for x
    x = 78,512,518,033.21/452,604.30
  6. Step 6: Final answer
    x = 173,468.34

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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.