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Finding the Fourth Proportional to 414,929.60, 620,960.80 and 248,836.80

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Solution

The fourth proportional to 414,929.60, 620,960.80 and 248,836.80 is: 372,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,929.60 : 620,960.80 = 248,836.80 : x
  2. Step 2: Convert to fraction form
    414,929.60/620,960.80 = 248,836.80/x
  3. Step 3: Cross multiply
    414,929.60x = 620,960.80 × 248,836.80
  4. Step 4: Simplify right side
    414,929.60x = 154,517,898,397.44
  5. Step 5: Solve for x
    x = 154,517,898,397.44/414,929.60
  6. Step 6: Final answer
    x = 372,395.46

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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.