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Finding the Fourth Proportional to 348,793.60, 481,389.12 and 205,600

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Solution

The fourth proportional to 348,793.60, 481,389.12 and 205,600 is: 283,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,793.60 : 481,389.12 = 205,600 : x
  2. Step 2: Convert to fraction form
    348,793.60/481,389.12 = 205,600/x
  3. Step 3: Cross multiply
    348,793.60x = 481,389.12 × 205,600
  4. Step 4: Simplify right side
    348,793.60x = 98,973,603,072
  5. Step 5: Solve for x
    x = 98,973,603,072/348,793.60
  6. Step 6: Final answer
    x = 283,759.80

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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.