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Finding the Fourth Proportional to 348,439.48, 480,817.44 and 195,456.40

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Solution

The fourth proportional to 348,439.48, 480,817.44 and 195,456.40 is: 269,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,439.48 : 480,817.44 = 195,456.40 : x
  2. Step 2: Convert to fraction form
    348,439.48/480,817.44 = 195,456.40/x
  3. Step 3: Cross multiply
    348,439.48x = 480,817.44 × 195,456.40
  4. Step 4: Simplify right side
    348,439.48x = 93,978,845,879.62
  5. Step 5: Solve for x
    x = 93,978,845,879.62/348,439.48
  6. Step 6: Final answer
    x = 269,713.54

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1.5x scale

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.