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Finding the Fourth Proportional to 351,770.58, 485,445.15 and 206,674.07

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Solution

The fourth proportional to 351,770.58, 485,445.15 and 206,674.07 is: 285,211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,770.58 : 485,445.15 = 206,674.07 : x
  2. Step 2: Convert to fraction form
    351,770.58/485,445.15 = 206,674.07/x
  3. Step 3: Cross multiply
    351,770.58x = 485,445.15 × 206,674.07
  4. Step 4: Simplify right side
    351,770.58x = 100,328,922,485.04
  5. Step 5: Solve for x
    x = 100,328,922,485.04/351,770.58
  6. Step 6: Final answer
    x = 285,211.24

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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.