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Finding the Fourth Proportional to 414,534.40, 622,166.10 and 245,843.80

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Solution

The fourth proportional to 414,534.40, 622,166.10 and 245,843.80 is: 368,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,534.40 : 622,166.10 = 245,843.80 : x
  2. Step 2: Convert to fraction form
    414,534.40/622,166.10 = 245,843.80/x
  3. Step 3: Cross multiply
    414,534.40x = 622,166.10 × 245,843.80
  4. Step 4: Simplify right side
    414,534.40x = 152,955,678,255.18
  5. Step 5: Solve for x
    x = 152,955,678,255.18/414,534.40
  6. Step 6: Final answer
    x = 368,981.87

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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.