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Finding the Fourth Proportional to 580,523.20, 871,121.08 and 243,534

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Solution

The fourth proportional to 580,523.20, 871,121.08 and 243,534 is: 365,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,523.20 : 871,121.08 = 243,534 : x
  2. Step 2: Convert to fraction form
    580,523.20/871,121.08 = 243,534/x
  3. Step 3: Cross multiply
    580,523.20x = 871,121.08 × 243,534
  4. Step 4: Simplify right side
    580,523.20x = 212,147,601,096.72
  5. Step 5: Solve for x
    x = 212,147,601,096.72/580,523.20
  6. Step 6: Final answer
    x = 365,442.07

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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.