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Finding the Fourth Proportional to 366,947.80, 512,621 and 366,947.80

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Solution

The fourth proportional to 366,947.80, 512,621 and 366,947.80 is: 512,621

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,947.80 : 512,621 = 366,947.80 : x
  2. Step 2: Convert to fraction form
    366,947.80/512,621 = 366,947.80/x
  3. Step 3: Cross multiply
    366,947.80x = 512,621 × 366,947.80
  4. Step 4: Simplify right side
    366,947.80x = 188,105,148,183.80
  5. Step 5: Solve for x
    x = 188,105,148,183.80/366,947.80
  6. Step 6: Final answer
    x = 512,621

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.