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Finding the Fourth Proportional to 347,586, 479,668.68 and 188,610

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Solution

The fourth proportional to 347,586, 479,668.68 and 188,610 is: 260,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,586 : 479,668.68 = 188,610 : x
  2. Step 2: Convert to fraction form
    347,586/479,668.68 = 188,610/x
  3. Step 3: Cross multiply
    347,586x = 479,668.68 × 188,610
  4. Step 4: Simplify right side
    347,586x = 90,470,309,734.80
  5. Step 5: Solve for x
    x = 90,470,309,734.80/347,586
  6. Step 6: Final answer
    x = 260,281.80

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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.