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Finding the Fourth Proportional to 367,003.10, 550,504.65 and 340,431.05

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Solution

The fourth proportional to 367,003.10, 550,504.65 and 340,431.05 is: 510,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,003.10 : 550,504.65 = 340,431.05 : x
  2. Step 2: Convert to fraction form
    367,003.10/550,504.65 = 340,431.05/x
  3. Step 3: Cross multiply
    367,003.10x = 550,504.65 × 340,431.05
  4. Step 4: Simplify right side
    367,003.10x = 187,408,876,029.38
  5. Step 5: Solve for x
    x = 187,408,876,029.38/367,003.10
  6. Step 6: Final answer
    x = 510,646.58

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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.