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Finding the Fourth Proportional to 580,958.60, 871,265.10 and 225,768.20

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Solution

The fourth proportional to 580,958.60, 871,265.10 and 225,768.20 is: 338,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,958.60 : 871,265.10 = 225,768.20 : x
  2. Step 2: Convert to fraction form
    580,958.60/871,265.10 = 225,768.20/x
  3. Step 3: Cross multiply
    580,958.60x = 871,265.10 × 225,768.20
  4. Step 4: Simplify right side
    580,958.60x = 196,703,953,349.82
  5. Step 5: Solve for x
    x = 196,703,953,349.82/580,958.60
  6. Step 6: Final answer
    x = 338,585.15

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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.