Home / 520,912.12-781,611.24-184,207.76

Finding the Fourth Proportional to 520,912.12, 781,611.24 and 184,207.76

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Solution

The fourth proportional to 520,912.12, 781,611.24 and 184,207.76 is: 276,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,912.12 : 781,611.24 = 184,207.76 : x
  2. Step 2: Convert to fraction form
    520,912.12/781,611.24 = 184,207.76/x
  3. Step 3: Cross multiply
    520,912.12x = 781,611.24 × 184,207.76
  4. Step 4: Simplify right side
    520,912.12x = 143,978,855,711.22
  5. Step 5: Solve for x
    x = 143,978,855,711.22/520,912.12
  6. Step 6: Final answer
    x = 276,397.59

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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.