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Finding the Fourth Proportional to 414,565.40, 622,212.60 and 245,874.80

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Solution

The fourth proportional to 414,565.40, 622,212.60 and 245,874.80 is: 369,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,565.40 : 622,212.60 = 245,874.80 : x
  2. Step 2: Convert to fraction form
    414,565.40/622,212.60 = 245,874.80/x
  3. Step 3: Cross multiply
    414,565.40x = 622,212.60 × 245,874.80
  4. Step 4: Simplify right side
    414,565.40x = 152,986,398,582.48
  5. Step 5: Solve for x
    x = 152,986,398,582.48/414,565.40
  6. Step 6: Final answer
    x = 369,028.38

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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.