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Finding the Fourth Proportional to 488,698.90, 733,048.35 and 173,187.70

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Solution

The fourth proportional to 488,698.90, 733,048.35 and 173,187.70 is: 259,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,698.90 : 733,048.35 = 173,187.70 : x
  2. Step 2: Convert to fraction form
    488,698.90/733,048.35 = 173,187.70/x
  3. Step 3: Cross multiply
    488,698.90x = 733,048.35 × 173,187.70
  4. Step 4: Simplify right side
    488,698.90x = 126,954,957,725.30
  5. Step 5: Solve for x
    x = 126,954,957,725.30/488,698.90
  6. Step 6: Final answer
    x = 259,781.55

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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.