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Finding the Fourth Proportional to 620,046.16, 930,156.72 and 199,180.96

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Solution

The fourth proportional to 620,046.16, 930,156.72 and 199,180.96 is: 298,799.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,046.16 : 930,156.72 = 199,180.96 : x
  2. Step 2: Convert to fraction form
    620,046.16/930,156.72 = 199,180.96/x
  3. Step 3: Cross multiply
    620,046.16x = 930,156.72 × 199,180.96
  4. Step 4: Simplify right side
    620,046.16x = 185,269,508,440.05
  5. Step 5: Solve for x
    x = 185,269,508,440.05/620,046.16
  6. Step 6: Final answer
    x = 298,799.54

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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.