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Finding the Fourth Proportional to 492,058.22, 679,042.77 and 277,201.67

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Solution

The fourth proportional to 492,058.22, 679,042.77 and 277,201.67 is: 382,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,058.22 : 679,042.77 = 277,201.67 : x
  2. Step 2: Convert to fraction form
    492,058.22/679,042.77 = 277,201.67/x
  3. Step 3: Cross multiply
    492,058.22x = 679,042.77 × 277,201.67
  4. Step 4: Simplify right side
    492,058.22x = 188,231,789,845.43
  5. Step 5: Solve for x
    x = 188,231,789,845.43/492,058.22
  6. Step 6: Final answer
    x = 382,539.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.