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Finding the Fourth Proportional to 274,974.40, 411,969.52 and 235,608.40

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Solution

The fourth proportional to 274,974.40, 411,969.52 and 235,608.40 is: 352,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,974.40 : 411,969.52 = 235,608.40 : x
  2. Step 2: Convert to fraction form
    274,974.40/411,969.52 = 235,608.40/x
  3. Step 3: Cross multiply
    274,974.40x = 411,969.52 × 235,608.40
  4. Step 4: Simplify right side
    274,974.40x = 97,063,479,455.97
  5. Step 5: Solve for x
    x = 97,063,479,455.97/274,974.40
  6. Step 6: Final answer
    x = 352,990.97

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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.