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Finding the Fourth Proportional to 464,337.20, 640,792.42 and 270,739.56

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Solution

The fourth proportional to 464,337.20, 640,792.42 and 270,739.56 is: 373,624.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,337.20 : 640,792.42 = 270,739.56 : x
  2. Step 2: Convert to fraction form
    464,337.20/640,792.42 = 270,739.56/x
  3. Step 3: Cross multiply
    464,337.20x = 640,792.42 × 270,739.56
  4. Step 4: Simplify right side
    464,337.20x = 173,487,857,842.14
  5. Step 5: Solve for x
    x = 173,487,857,842.14/464,337.20
  6. Step 6: Final answer
    x = 373,624.72

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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.