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Finding the Fourth Proportional to 492,580.36, 679,747.32 and 277,718.56

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Solution

The fourth proportional to 492,580.36, 679,747.32 and 277,718.56 is: 383,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,580.36 : 679,747.32 = 277,718.56 : x
  2. Step 2: Convert to fraction form
    492,580.36/679,747.32 = 277,718.56/x
  3. Step 3: Cross multiply
    492,580.36x = 679,747.32 × 277,718.56
  4. Step 4: Simplify right side
    492,580.36x = 188,778,446,874.26
  5. Step 5: Solve for x
    x = 188,778,446,874.26/492,580.36
  6. Step 6: Final answer
    x = 383,243.96

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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.