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Finding the Fourth Proportional to 381,975.40, 573,222.30 and 248,530.60

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Solution

The fourth proportional to 381,975.40, 573,222.30 and 248,530.60 is: 372,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,975.40 : 573,222.30 = 248,530.60 : x
  2. Step 2: Convert to fraction form
    381,975.40/573,222.30 = 248,530.60/x
  3. Step 3: Cross multiply
    381,975.40x = 573,222.30 × 248,530.60
  4. Step 4: Simplify right side
    381,975.40x = 142,463,282,152.38
  5. Step 5: Solve for x
    x = 142,463,282,152.38/381,975.40
  6. Step 6: Final answer
    x = 372,964.55

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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.