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Finding the Fourth Proportional to 339,003.70, 507,922.35 and 220,614.10

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Solution

The fourth proportional to 339,003.70, 507,922.35 and 220,614.10 is: 330,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,003.70 : 507,922.35 = 220,614.10 : x
  2. Step 2: Convert to fraction form
    339,003.70/507,922.35 = 220,614.10/x
  3. Step 3: Cross multiply
    339,003.70x = 507,922.35 × 220,614.10
  4. Step 4: Simplify right side
    339,003.70x = 112,054,832,115.14
  5. Step 5: Solve for x
    x = 112,054,832,115.14/339,003.70
  6. Step 6: Final answer
    x = 330,541.62

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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.