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Finding the Fourth Proportional to 677,632, 1,016,469.08 and 251,273.92

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Solution

The fourth proportional to 677,632, 1,016,469.08 and 251,273.92 is: 376,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,632 : 1,016,469.08 = 251,273.92 : x
  2. Step 2: Convert to fraction form
    677,632/1,016,469.08 = 251,273.92/x
  3. Step 3: Cross multiply
    677,632x = 1,016,469.08 × 251,273.92
  4. Step 4: Simplify right side
    677,632x = 255,412,170,290.39
  5. Step 5: Solve for x
    x = 255,412,170,290.39/677,632
  6. Step 6: Final answer
    x = 376,918.70

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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.