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Finding the Fourth Proportional to 493,640.31, 740,460.47 and 119,663.31

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Solution

The fourth proportional to 493,640.31, 740,460.47 and 119,663.31 is: 179,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,640.31 : 740,460.47 = 119,663.31 : x
  2. Step 2: Convert to fraction form
    493,640.31/740,460.47 = 119,663.31/x
  3. Step 3: Cross multiply
    493,640.31x = 740,460.47 × 119,663.31
  4. Step 4: Simplify right side
    493,640.31x = 88,605,950,764.36
  5. Step 5: Solve for x
    x = 88,605,950,764.36/493,640.31
  6. Step 6: Final answer
    x = 179,494.97

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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.