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Finding the Fourth Proportional to 515,366.37, 773,122.46 and 199,855.17

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Solution

The fourth proportional to 515,366.37, 773,122.46 and 199,855.17 is: 299,811.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,366.37 : 773,122.46 = 199,855.17 : x
  2. Step 2: Convert to fraction form
    515,366.37/773,122.46 = 199,855.17/x
  3. Step 3: Cross multiply
    515,366.37x = 773,122.46 × 199,855.17
  4. Step 4: Simplify right side
    515,366.37x = 154,512,519,674.84
  5. Step 5: Solve for x
    x = 154,512,519,674.84/515,366.37
  6. Step 6: Final answer
    x = 299,811.03

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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.