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Finding the Fourth Proportional to 500,959,648.56, 691,300,893.21 and 277,938,956.67

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Solution

The fourth proportional to 500,959,648.56, 691,300,893.21 and 277,938,956.67 is: 383,542,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,959,648.56 : 691,300,893.21 = 277,938,956.67 : x
  2. Step 2: Convert to fraction form
    500,959,648.56/691,300,893.21 = 277,938,956.67/x
  3. Step 3: Cross multiply
    500,959,648.56x = 691,300,893.21 × 277,938,956.67
  4. Step 4: Simplify right side
    500,959,648.56x = 192,139,449,003,826,496
  5. Step 5: Solve for x
    x = 192,139,449,003,826,496/500,959,648.56
  6. Step 6: Final answer
    x = 383,542,765.48

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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.