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Finding the Fourth Proportional to 574,443.78, 861,670.35 and 195,450.64

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Solution

The fourth proportional to 574,443.78, 861,670.35 and 195,450.64 is: 293,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,443.78 : 861,670.35 = 195,450.64 : x
  2. Step 2: Convert to fraction form
    574,443.78/861,670.35 = 195,450.64/x
  3. Step 3: Cross multiply
    574,443.78x = 861,670.35 × 195,450.64
  4. Step 4: Simplify right side
    574,443.78x = 168,414,021,376.52
  5. Step 5: Solve for x
    x = 168,414,021,376.52/574,443.78
  6. Step 6: Final answer
    x = 293,177.55

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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.