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Finding the Fourth Proportional to 348,347.87, 521,783.69 and 263,169.68

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Solution

The fourth proportional to 348,347.87, 521,783.69 and 263,169.68 is: 394,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,347.87 : 521,783.69 = 263,169.68 : x
  2. Step 2: Convert to fraction form
    348,347.87/521,783.69 = 263,169.68/x
  3. Step 3: Cross multiply
    348,347.87x = 521,783.69 × 263,169.68
  4. Step 4: Simplify right side
    348,347.87x = 137,317,647,574.39
  5. Step 5: Solve for x
    x = 137,317,647,574.39/348,347.87
  6. Step 6: Final answer
    x = 394,196.90

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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.