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Finding the Fourth Proportional to 339,511.53, 468,350.22 and 230,621.48

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Solution

The fourth proportional to 339,511.53, 468,350.22 and 230,621.48 is: 318,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,511.53 : 468,350.22 = 230,621.48 : x
  2. Step 2: Convert to fraction form
    339,511.53/468,350.22 = 230,621.48/x
  3. Step 3: Cross multiply
    339,511.53x = 468,350.22 × 230,621.48
  4. Step 4: Simplify right side
    339,511.53x = 108,011,618,552.98
  5. Step 5: Solve for x
    x = 108,011,618,552.98/339,511.53
  6. Step 6: Final answer
    x = 318,138.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.