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Finding the Fourth Proportional to 662,112.66, 993,057.80 and 188,685.48

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Solution

The fourth proportional to 662,112.66, 993,057.80 and 188,685.48 is: 282,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,112.66 : 993,057.80 = 188,685.48 : x
  2. Step 2: Convert to fraction form
    662,112.66/993,057.80 = 188,685.48/x
  3. Step 3: Cross multiply
    662,112.66x = 993,057.80 × 188,685.48
  4. Step 4: Simplify right side
    662,112.66x = 187,375,587,660.74
  5. Step 5: Solve for x
    x = 187,375,587,660.74/662,112.66
  6. Step 6: Final answer
    x = 282,996.53

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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.