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Finding the Fourth Proportional to 493,878.06, 740,739.84 and 156,874.38

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Solution

The fourth proportional to 493,878.06, 740,739.84 and 156,874.38 is: 235,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,878.06 : 740,739.84 = 156,874.38 : x
  2. Step 2: Convert to fraction form
    493,878.06/740,739.84 = 156,874.38/x
  3. Step 3: Cross multiply
    493,878.06x = 740,739.84 × 156,874.38
  4. Step 4: Simplify right side
    493,878.06x = 116,203,103,141.30
  5. Step 5: Solve for x
    x = 116,203,103,141.30/493,878.06
  6. Step 6: Final answer
    x = 235,287.03

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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.