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Finding the Fourth Proportional to 355,220.57, 490,211.44 and 194,085.62

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Solution

The fourth proportional to 355,220.57, 490,211.44 and 194,085.62 is: 267,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,220.57 : 490,211.44 = 194,085.62 : x
  2. Step 2: Convert to fraction form
    355,220.57/490,211.44 = 194,085.62/x
  3. Step 3: Cross multiply
    355,220.57x = 490,211.44 × 194,085.62
  4. Step 4: Simplify right side
    355,220.57x = 95,142,991,257.25
  5. Step 5: Solve for x
    x = 95,142,991,257.25/355,220.57
  6. Step 6: Final answer
    x = 267,842.01

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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.