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Finding the Fourth Proportional to 479,967.31, 720,058.32 and 180,450.48

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Solution

The fourth proportional to 479,967.31, 720,058.32 and 180,450.48 is: 270,716.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,967.31 : 720,058.32 = 180,450.48 : x
  2. Step 2: Convert to fraction form
    479,967.31/720,058.32 = 180,450.48/x
  3. Step 3: Cross multiply
    479,967.31x = 720,058.32 × 180,450.48
  4. Step 4: Simplify right side
    479,967.31x = 129,934,869,471.99
  5. Step 5: Solve for x
    x = 129,934,869,471.99/479,967.31
  6. Step 6: Final answer
    x = 270,716.08

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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.