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Finding the Fourth Proportional to 351,999.53, 485,760.39 and 190,854.62

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Solution

The fourth proportional to 351,999.53, 485,760.39 and 190,854.62 is: 263,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,999.53 : 485,760.39 = 190,854.62 : x
  2. Step 2: Convert to fraction form
    351,999.53/485,760.39 = 190,854.62/x
  3. Step 3: Cross multiply
    351,999.53x = 485,760.39 × 190,854.62
  4. Step 4: Simplify right side
    351,999.53x = 92,709,612,215.70
  5. Step 5: Solve for x
    x = 92,709,612,215.70/351,999.53
  6. Step 6: Final answer
    x = 263,379.94

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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.