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Finding the Fourth Proportional to 355,243.83, 490,235.73 and 194,100.03

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Solution

The fourth proportional to 355,243.83, 490,235.73 and 194,100.03 is: 267,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,243.83 : 490,235.73 = 194,100.03 : x
  2. Step 2: Convert to fraction form
    355,243.83/490,235.73 = 194,100.03/x
  3. Step 3: Cross multiply
    355,243.83x = 490,235.73 × 194,100.03
  4. Step 4: Simplify right side
    355,243.83x = 95,154,769,172.20
  5. Step 5: Solve for x
    x = 95,154,769,172.20/355,243.83
  6. Step 6: Final answer
    x = 267,857.63

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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.