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Finding the Fourth Proportional to 563,912.53, 778,240.49 and 322,189.92

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Solution

The fourth proportional to 563,912.53, 778,240.49 and 322,189.92 is: 444,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,912.53 : 778,240.49 = 322,189.92 : x
  2. Step 2: Convert to fraction form
    563,912.53/778,240.49 = 322,189.92/x
  3. Step 3: Cross multiply
    563,912.53x = 778,240.49 × 322,189.92
  4. Step 4: Simplify right side
    563,912.53x = 250,741,239,602.91
  5. Step 5: Solve for x
    x = 250,741,239,602.91/563,912.53
  6. Step 6: Final answer
    x = 444,645.63

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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.