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Finding the Fourth Proportional to 613,179.75, 919,821.47 and 169,947.75

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Solution

The fourth proportional to 613,179.75, 919,821.47 and 169,947.75 is: 254,935.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,179.75 : 919,821.47 = 169,947.75 : x
  2. Step 2: Convert to fraction form
    613,179.75/919,821.47 = 169,947.75/x
  3. Step 3: Cross multiply
    613,179.75x = 919,821.47 × 169,947.75
  4. Step 4: Simplify right side
    613,179.75x = 156,321,588,378.45
  5. Step 5: Solve for x
    x = 156,321,588,378.45/613,179.75
  6. Step 6: Final answer
    x = 254,935.99

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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.