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Finding the Fourth Proportional to 629,649.40, 944,753.28 and 330,058.48

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Solution

The fourth proportional to 629,649.40, 944,753.28 and 330,058.48 is: 495,234.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,649.40 : 944,753.28 = 330,058.48 : x
  2. Step 2: Convert to fraction form
    629,649.40/944,753.28 = 330,058.48/x
  3. Step 3: Cross multiply
    629,649.40x = 944,753.28 × 330,058.48
  4. Step 4: Simplify right side
    629,649.40x = 311,823,831,571.81
  5. Step 5: Solve for x
    x = 311,823,831,571.81/629,649.40
  6. Step 6: Final answer
    x = 495,234.06

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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.