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Finding the Fourth Proportional to 340,912.13, 511,537.14 and 250,732.40

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Solution

The fourth proportional to 340,912.13, 511,537.14 and 250,732.40 is: 376,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,912.13 : 511,537.14 = 250,732.40 : x
  2. Step 2: Convert to fraction form
    340,912.13/511,537.14 = 250,732.40/x
  3. Step 3: Cross multiply
    340,912.13x = 511,537.14 × 250,732.40
  4. Step 4: Simplify right side
    340,912.13x = 128,258,932,243.65
  5. Step 5: Solve for x
    x = 128,258,932,243.65/340,912.13
  6. Step 6: Final answer
    x = 376,222.85

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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.