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Finding the Fourth Proportional to 351,861.41, 485,566.02 and 190,712.30

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Solution

The fourth proportional to 351,861.41, 485,566.02 and 190,712.30 is: 263,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,861.41 : 485,566.02 = 190,712.30 : x
  2. Step 2: Convert to fraction form
    351,861.41/485,566.02 = 190,712.30/x
  3. Step 3: Cross multiply
    351,861.41x = 485,566.02 × 190,712.30
  4. Step 4: Simplify right side
    351,861.41x = 92,603,412,476.05
  5. Step 5: Solve for x
    x = 92,603,412,476.05/351,861.41
  6. Step 6: Final answer
    x = 263,181.50

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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.