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Finding the Fourth Proportional to 348,874.92, 481,626.74 and 298,429.56

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Solution

The fourth proportional to 348,874.92, 481,626.74 and 298,429.56 is: 411,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,874.92 : 481,626.74 = 298,429.56 : x
  2. Step 2: Convert to fraction form
    348,874.92/481,626.74 = 298,429.56/x
  3. Step 3: Cross multiply
    348,874.92x = 481,626.74 × 298,429.56
  4. Step 4: Simplify right side
    348,874.92x = 143,731,656,848.51
  5. Step 5: Solve for x
    x = 143,731,656,848.51/348,874.92
  6. Step 6: Final answer
    x = 411,986.21

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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.