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Finding the Fourth Proportional to 485,119.56, 726,792.60 and 351,668.82

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Solution

The fourth proportional to 485,119.56, 726,792.60 and 351,668.82 is: 526,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,119.56 : 726,792.60 = 351,668.82 : x
  2. Step 2: Convert to fraction form
    485,119.56/726,792.60 = 351,668.82/x
  3. Step 3: Cross multiply
    485,119.56x = 726,792.60 × 351,668.82
  4. Step 4: Simplify right side
    485,119.56x = 255,590,296,026.73
  5. Step 5: Solve for x
    x = 255,590,296,026.73/485,119.56
  6. Step 6: Final answer
    x = 526,860.42

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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.