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Finding the Fourth Proportional to 493,463.28, 740,221.24 and 156,529.52

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Solution

The fourth proportional to 493,463.28, 740,221.24 and 156,529.52 is: 234,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,463.28 : 740,221.24 = 156,529.52 : x
  2. Step 2: Convert to fraction form
    493,463.28/740,221.24 = 156,529.52/x
  3. Step 3: Cross multiply
    493,463.28x = 740,221.24 × 156,529.52
  4. Step 4: Simplify right side
    493,463.28x = 115,866,475,391.01
  5. Step 5: Solve for x
    x = 115,866,475,391.01/493,463.28
  6. Step 6: Final answer
    x = 234,802.63

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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.