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Finding the Fourth Proportional to 358,536.78, 494,771.16 and 197,393.04

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Solution

The fourth proportional to 358,536.78, 494,771.16 and 197,393.04 is: 272,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,536.78 : 494,771.16 = 197,393.04 : x
  2. Step 2: Convert to fraction form
    358,536.78/494,771.16 = 197,393.04/x
  3. Step 3: Cross multiply
    358,536.78x = 494,771.16 × 197,393.04
  4. Step 4: Simplify right side
    358,536.78x = 97,664,383,376.73
  5. Step 5: Solve for x
    x = 97,664,383,376.73/358,536.78
  6. Step 6: Final answer
    x = 272,397.11

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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.