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Finding the Fourth Proportional to 493,589.66, 740,379.02 and 156,630.06

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Solution

The fourth proportional to 493,589.66, 740,379.02 and 156,630.06 is: 234,943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,589.66 : 740,379.02 = 156,630.06 : x
  2. Step 2: Convert to fraction form
    493,589.66/740,379.02 = 156,630.06/x
  3. Step 3: Cross multiply
    493,589.66x = 740,379.02 × 156,630.06
  4. Step 4: Simplify right side
    493,589.66x = 115,965,609,542.19
  5. Step 5: Solve for x
    x = 115,965,609,542.19/493,589.66
  6. Step 6: Final answer
    x = 234,943.36

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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.