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Finding the Fourth Proportional to 613,063.40, 919,584.47 and 275,865.46

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Solution

The fourth proportional to 613,063.40, 919,584.47 and 275,865.46 is: 413,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,063.40 : 919,584.47 = 275,865.46 : x
  2. Step 2: Convert to fraction form
    613,063.40/919,584.47 = 275,865.46/x
  3. Step 3: Cross multiply
    613,063.40x = 919,584.47 × 275,865.46
  4. Step 4: Simplify right side
    613,063.40x = 253,681,591,446.08
  5. Step 5: Solve for x
    x = 253,681,591,446.08/613,063.40
  6. Step 6: Final answer
    x = 413,793.41

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1.5x scale

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.