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Finding the Fourth Proportional to 467,391.20, 699,704.40 and 440,050.40

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Solution

The fourth proportional to 467,391.20, 699,704.40 and 440,050.40 is: 658,774.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,391.20 : 699,704.40 = 440,050.40 : x
  2. Step 2: Convert to fraction form
    467,391.20/699,704.40 = 440,050.40/x
  3. Step 3: Cross multiply
    467,391.20x = 699,704.40 × 440,050.40
  4. Step 4: Simplify right side
    467,391.20x = 307,905,201,101.76
  5. Step 5: Solve for x
    x = 307,905,201,101.76/467,391.20
  6. Step 6: Final answer
    x = 658,774.07

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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.