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Finding the Fourth Proportional to 366,847.20, 513,936 and 366,847.20

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Solution

The fourth proportional to 366,847.20, 513,936 and 366,847.20 is: 513,936

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,847.20 : 513,936 = 366,847.20 : x
  2. Step 2: Convert to fraction form
    366,847.20/513,936 = 366,847.20/x
  3. Step 3: Cross multiply
    366,847.20x = 513,936 × 366,847.20
  4. Step 4: Simplify right side
    366,847.20x = 188,535,982,579.20
  5. Step 5: Solve for x
    x = 188,535,982,579.20/366,847.20
  6. Step 6: Final answer
    x = 513,936

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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.