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Finding the Fourth Proportional to 274,436.63, 411,229.82 and 190,360.25

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Solution

The fourth proportional to 274,436.63, 411,229.82 and 190,360.25 is: 285,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,436.63 : 411,229.82 = 190,360.25 : x
  2. Step 2: Convert to fraction form
    274,436.63/411,229.82 = 190,360.25/x
  3. Step 3: Cross multiply
    274,436.63x = 411,229.82 × 190,360.25
  4. Step 4: Simplify right side
    274,436.63x = 78,281,809,762.41
  5. Step 5: Solve for x
    x = 78,281,809,762.41/274,436.63
  6. Step 6: Final answer
    x = 285,245.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.