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Finding the Fourth Proportional to 451,661.27, 677,864.64 and 227,085.53

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Solution

The fourth proportional to 451,661.27, 677,864.64 and 227,085.53 is: 340,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,661.27 : 677,864.64 = 227,085.53 : x
  2. Step 2: Convert to fraction form
    451,661.27/677,864.64 = 227,085.53/x
  3. Step 3: Cross multiply
    451,661.27x = 677,864.64 × 227,085.53
  4. Step 4: Simplify right side
    451,661.27x = 153,933,251,042.66
  5. Step 5: Solve for x
    x = 153,933,251,042.66/451,661.27
  6. Step 6: Final answer
    x = 340,815.70

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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.