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Finding the Fourth Proportional to 488,015.62, 673,491.45 and 273,169.06

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Solution

The fourth proportional to 488,015.62, 673,491.45 and 273,169.06 is: 376,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,015.62 : 673,491.45 = 273,169.06 : x
  2. Step 2: Convert to fraction form
    488,015.62/673,491.45 = 273,169.06/x
  3. Step 3: Cross multiply
    488,015.62x = 673,491.45 × 273,169.06
  4. Step 4: Simplify right side
    488,015.62x = 183,977,026,314.54
  5. Step 5: Solve for x
    x = 183,977,026,314.54/488,015.62
  6. Step 6: Final answer
    x = 376,990.04

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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.