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Finding the Fourth Proportional to 455,951.92, 629,194.07 and 251,992.30

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Solution

The fourth proportional to 455,951.92, 629,194.07 and 251,992.30 is: 347,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,951.92 : 629,194.07 = 251,992.30 : x
  2. Step 2: Convert to fraction form
    455,951.92/629,194.07 = 251,992.30/x
  3. Step 3: Cross multiply
    455,951.92x = 629,194.07 × 251,992.30
  4. Step 4: Simplify right side
    455,951.92x = 158,552,060,845.66
  5. Step 5: Solve for x
    x = 158,552,060,845.66/455,951.92
  6. Step 6: Final answer
    x = 347,738.55

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1.5x scale

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.