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Finding the Fourth Proportional to 624,431.74, 937,021.26 and 269,445.76

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Solution

The fourth proportional to 624,431.74, 937,021.26 and 269,445.76 is: 404,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,431.74 : 937,021.26 = 269,445.76 : x
  2. Step 2: Convert to fraction form
    624,431.74/937,021.26 = 269,445.76/x
  3. Step 3: Cross multiply
    624,431.74x = 937,021.26 × 269,445.76
  4. Step 4: Simplify right side
    624,431.74x = 252,476,405,536.86
  5. Step 5: Solve for x
    x = 252,476,405,536.86/624,431.74
  6. Step 6: Final answer
    x = 404,329.87

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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.