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Finding the Fourth Proportional to 563,940.36, 778,165.52 and 322,238.66

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Solution

The fourth proportional to 563,940.36, 778,165.52 and 322,238.66 is: 444,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,940.36 : 778,165.52 = 322,238.66 : x
  2. Step 2: Convert to fraction form
    563,940.36/778,165.52 = 322,238.66/x
  3. Step 3: Cross multiply
    563,940.36x = 778,165.52 × 322,238.66
  4. Step 4: Simplify right side
    563,940.36x = 250,755,008,920.98
  5. Step 5: Solve for x
    x = 250,755,008,920.98/563,940.36
  6. Step 6: Final answer
    x = 444,648.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.