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Finding the Fourth Proportional to 530,987.85, 796,003.50 and 193,791.90

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Solution

The fourth proportional to 530,987.85, 796,003.50 and 193,791.90 is: 290,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,987.85 : 796,003.50 = 193,791.90 : x
  2. Step 2: Convert to fraction form
    530,987.85/796,003.50 = 193,791.90/x
  3. Step 3: Cross multiply
    530,987.85x = 796,003.50 × 193,791.90
  4. Step 4: Simplify right side
    530,987.85x = 154,259,030,671.65
  5. Step 5: Solve for x
    x = 154,259,030,671.65/530,987.85
  6. Step 6: Final answer
    x = 290,513.30

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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.