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Finding the Fourth Proportional to 408,351.16, 563,479.50 and 244,999

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Solution

The fourth proportional to 408,351.16, 563,479.50 and 244,999 is: 338,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,351.16 : 563,479.50 = 244,999 : x
  2. Step 2: Convert to fraction form
    408,351.16/563,479.50 = 244,999/x
  3. Step 3: Cross multiply
    408,351.16x = 563,479.50 × 244,999
  4. Step 4: Simplify right side
    408,351.16x = 138,051,914,020.50
  5. Step 5: Solve for x
    x = 138,051,914,020.50/408,351.16
  6. Step 6: Final answer
    x = 338,071.56

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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.