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Finding the Fourth Proportional to 336,852.40, 505,286.70 and 100,202.80

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Solution

The fourth proportional to 336,852.40, 505,286.70 and 100,202.80 is: 150,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,852.40 : 505,286.70 = 100,202.80 : x
  2. Step 2: Convert to fraction form
    336,852.40/505,286.70 = 100,202.80/x
  3. Step 3: Cross multiply
    336,852.40x = 505,286.70 × 100,202.80
  4. Step 4: Simplify right side
    336,852.40x = 50,631,142,142.76
  5. Step 5: Solve for x
    x = 50,631,142,142.76/336,852.40
  6. Step 6: Final answer
    x = 150,306.61

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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.