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Finding the Fourth Proportional to 408,811.06, 613,216.76 and 183,908.80

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Solution

The fourth proportional to 408,811.06, 613,216.76 and 183,908.80 is: 275,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,811.06 : 613,216.76 = 183,908.80 : x
  2. Step 2: Convert to fraction form
    408,811.06/613,216.76 = 183,908.80/x
  3. Step 3: Cross multiply
    408,811.06x = 613,216.76 × 183,908.80
  4. Step 4: Simplify right side
    408,811.06x = 112,775,958,471.49
  5. Step 5: Solve for x
    x = 112,775,958,471.49/408,811.06
  6. Step 6: Final answer
    x = 275,863.28

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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.