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Finding the Fourth Proportional to 399,943.38, 600,136.49 and 239,625.34

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Solution

The fourth proportional to 399,943.38, 600,136.49 and 239,625.34 is: 359,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,943.38 : 600,136.49 = 239,625.34 : x
  2. Step 2: Convert to fraction form
    399,943.38/600,136.49 = 239,625.34/x
  3. Step 3: Cross multiply
    399,943.38x = 600,136.49 × 239,625.34
  4. Step 4: Simplify right side
    399,943.38x = 143,807,910,462.66
  5. Step 5: Solve for x
    x = 143,807,910,462.66/399,943.38
  6. Step 6: Final answer
    x = 359,570.67

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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.