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Finding the Fourth Proportional to 300,487.64, 414,953.88 and 193,243.88

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Solution

The fourth proportional to 300,487.64, 414,953.88 and 193,243.88 is: 266,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,487.64 : 414,953.88 = 193,243.88 : x
  2. Step 2: Convert to fraction form
    300,487.64/414,953.88 = 193,243.88/x
  3. Step 3: Cross multiply
    300,487.64x = 414,953.88 × 193,243.88
  4. Step 4: Simplify right side
    300,487.64x = 80,187,297,792.25
  5. Step 5: Solve for x
    x = 80,187,297,792.25/300,487.64
  6. Step 6: Final answer
    x = 266,857.23

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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.