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Finding the Fourth Proportional to 580,742.91, 871,168.23 and 225,783.90

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Solution

The fourth proportional to 580,742.91, 871,168.23 and 225,783.90 is: 338,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,742.91 : 871,168.23 = 225,783.90 : x
  2. Step 2: Convert to fraction form
    580,742.91/871,168.23 = 225,783.90/x
  3. Step 3: Cross multiply
    580,742.91x = 871,168.23 × 225,783.90
  4. Step 4: Simplify right side
    580,742.91x = 196,695,760,525.50
  5. Step 5: Solve for x
    x = 196,695,760,525.50/580,742.91
  6. Step 6: Final answer
    x = 338,696.79

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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.