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Finding the Fourth Proportional to 508,818.20, 702,296.42 and 294,093.09

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Solution

The fourth proportional to 508,818.20, 702,296.42 and 294,093.09 is: 405,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,818.20 : 702,296.42 = 294,093.09 : x
  2. Step 2: Convert to fraction form
    508,818.20/702,296.42 = 294,093.09/x
  3. Step 3: Cross multiply
    508,818.20x = 702,296.42 × 294,093.09
  4. Step 4: Simplify right side
    508,818.20x = 206,540,522,783.27
  5. Step 5: Solve for x
    x = 206,540,522,783.27/508,818.20
  6. Step 6: Final answer
    x = 405,922.05

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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.