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Finding the Fourth Proportional to 625,363.86, 938,035.89 and 198,893.54

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Solution

The fourth proportional to 625,363.86, 938,035.89 and 198,893.54 is: 298,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,363.86 : 938,035.89 = 198,893.54 : x
  2. Step 2: Convert to fraction form
    625,363.86/938,035.89 = 198,893.54/x
  3. Step 3: Cross multiply
    625,363.86x = 938,035.89 × 198,893.54
  4. Step 4: Simplify right side
    625,363.86x = 186,569,274,118.97
  5. Step 5: Solve for x
    x = 186,569,274,118.97/625,363.86
  6. Step 6: Final answer
    x = 298,337.15

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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.