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Finding the Fourth Proportional to 479,713.72, 662,000.70 and 264,849.20

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Solution

The fourth proportional to 479,713.72, 662,000.70 and 264,849.20 is: 365,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,713.72 : 662,000.70 = 264,849.20 : x
  2. Step 2: Convert to fraction form
    479,713.72/662,000.70 = 264,849.20/x
  3. Step 3: Cross multiply
    479,713.72x = 662,000.70 × 264,849.20
  4. Step 4: Simplify right side
    479,713.72x = 175,330,355,794.44
  5. Step 5: Solve for x
    x = 175,330,355,794.44/479,713.72
  6. Step 6: Final answer
    x = 365,489.56

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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.