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Finding the Fourth Proportional to 358,520.70, 494,750.78 and 197,369.58

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Solution

The fourth proportional to 358,520.70, 494,750.78 and 197,369.58 is: 272,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,520.70 : 494,750.78 = 197,369.58 : x
  2. Step 2: Convert to fraction form
    358,520.70/494,750.78 = 197,369.58/x
  3. Step 3: Cross multiply
    358,520.70x = 494,750.78 × 197,369.58
  4. Step 4: Simplify right side
    358,520.70x = 97,648,753,653.27
  5. Step 5: Solve for x
    x = 97,648,753,653.27/358,520.70
  6. Step 6: Final answer
    x = 272,365.73

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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.