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Finding the Fourth Proportional to 274,306.20, 411,848.10 and 169,330.20

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Solution

The fourth proportional to 274,306.20, 411,848.10 and 169,330.20 is: 254,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,306.20 : 411,848.10 = 169,330.20 : x
  2. Step 2: Convert to fraction form
    274,306.20/411,848.10 = 169,330.20/x
  3. Step 3: Cross multiply
    274,306.20x = 411,848.10 × 169,330.20
  4. Step 4: Simplify right side
    274,306.20x = 69,738,321,142.62
  5. Step 5: Solve for x
    x = 69,738,321,142.62/274,306.20
  6. Step 6: Final answer
    x = 254,235.31

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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.