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Finding the Fourth Proportional to 502,537.48, 693,663.34 and 321,736.37

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Solution

The fourth proportional to 502,537.48, 693,663.34 and 321,736.37 is: 444,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,537.48 : 693,663.34 = 321,736.37 : x
  2. Step 2: Convert to fraction form
    502,537.48/693,663.34 = 321,736.37/x
  3. Step 3: Cross multiply
    502,537.48x = 693,663.34 × 321,736.37
  4. Step 4: Simplify right side
    502,537.48x = 223,176,721,545.36
  5. Step 5: Solve for x
    x = 223,176,721,545.36/502,537.48
  6. Step 6: Final answer
    x = 444,099.66

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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.