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Finding the Fourth Proportional to 358,604.80, 494,878.29 and 197,474.83

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Solution

The fourth proportional to 358,604.80, 494,878.29 and 197,474.83 is: 272,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,604.80 : 494,878.29 = 197,474.83 : x
  2. Step 2: Convert to fraction form
    358,604.80/494,878.29 = 197,474.83/x
  3. Step 3: Cross multiply
    358,604.80x = 494,878.29 × 197,474.83
  4. Step 4: Simplify right side
    358,604.80x = 97,726,006,188.44
  5. Step 5: Solve for x
    x = 97,726,006,188.44/358,604.80
  6. Step 6: Final answer
    x = 272,517.28

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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.