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Finding the Fourth Proportional to 491,224.57, 677,835.67 and 276,361.00

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Solution

The fourth proportional to 491,224.57, 677,835.67 and 276,361.00 is: 381,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,224.57 : 677,835.67 = 276,361.00 : x
  2. Step 2: Convert to fraction form
    491,224.57/677,835.67 = 276,361.00/x
  3. Step 3: Cross multiply
    491,224.57x = 677,835.67 × 276,361.00
  4. Step 4: Simplify right side
    491,224.57x = 187,327,343,654.34
  5. Step 5: Solve for x
    x = 187,327,343,654.34/491,224.57
  6. Step 6: Final answer
    x = 381,347.67

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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.