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Finding the Fourth Proportional to 547,238.93, 821,362.98 and 277,556.34

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Solution

The fourth proportional to 547,238.93, 821,362.98 and 277,556.34 is: 416,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,238.93 : 821,362.98 = 277,556.34 : x
  2. Step 2: Convert to fraction form
    547,238.93/821,362.98 = 277,556.34/x
  3. Step 3: Cross multiply
    547,238.93x = 821,362.98 × 277,556.34
  4. Step 4: Simplify right side
    547,238.93x = 227,974,502,540.29
  5. Step 5: Solve for x
    x = 227,974,502,540.29/547,238.93
  6. Step 6: Final answer
    x = 416,590.43

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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.