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Finding the Fourth Proportional to 366,974.20, 513,141.80 and 366,974.20

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Solution

The fourth proportional to 366,974.20, 513,141.80 and 366,974.20 is: 513,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,974.20 : 513,141.80 = 366,974.20 : x
  2. Step 2: Convert to fraction form
    366,974.20/513,141.80 = 366,974.20/x
  3. Step 3: Cross multiply
    366,974.20x = 513,141.80 × 366,974.20
  4. Step 4: Simplify right side
    366,974.20x = 188,309,801,541.56
  5. Step 5: Solve for x
    x = 188,309,801,541.56/366,974.20
  6. Step 6: Final answer
    x = 513,141.80

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1.5x scale

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.