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Finding the Fourth Proportional to 630,196.60, 945,755.70 and 419,764.60

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Solution

The fourth proportional to 630,196.60, 945,755.70 and 419,764.60 is: 629,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,196.60 : 945,755.70 = 419,764.60 : x
  2. Step 2: Convert to fraction form
    630,196.60/945,755.70 = 419,764.60/x
  3. Step 3: Cross multiply
    630,196.60x = 945,755.70 × 419,764.60
  4. Step 4: Simplify right side
    630,196.60x = 396,994,763,108.22
  5. Step 5: Solve for x
    x = 396,994,763,108.22/630,196.60
  6. Step 6: Final answer
    x = 629,953.83

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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.