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Finding the Fourth Proportional to 367,072.10, 550,608.15 and 260,783.90

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Solution

The fourth proportional to 367,072.10, 550,608.15 and 260,783.90 is: 391,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,072.10 : 550,608.15 = 260,783.90 : x
  2. Step 2: Convert to fraction form
    367,072.10/550,608.15 = 260,783.90/x
  3. Step 3: Cross multiply
    367,072.10x = 550,608.15 × 260,783.90
  4. Step 4: Simplify right side
    367,072.10x = 143,589,740,728.79
  5. Step 5: Solve for x
    x = 143,589,740,728.79/367,072.10
  6. Step 6: Final answer
    x = 391,175.85

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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.