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Finding the Fourth Proportional to 624,419.70, 937,003.21 and 269,433.72

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Solution

The fourth proportional to 624,419.70, 937,003.21 and 269,433.72 is: 404,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,419.70 : 937,003.21 = 269,433.72 : x
  2. Step 2: Convert to fraction form
    624,419.70/937,003.21 = 269,433.72/x
  3. Step 3: Cross multiply
    624,419.70x = 937,003.21 × 269,433.72
  4. Step 4: Simplify right side
    624,419.70x = 252,460,257,994.82
  5. Step 5: Solve for x
    x = 252,460,257,994.82/624,419.70
  6. Step 6: Final answer
    x = 404,311.81

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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.