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Finding the Fourth Proportional to 626,685.78, 939,938.46 and 200,270.22

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Solution

The fourth proportional to 626,685.78, 939,938.46 and 200,270.22 is: 300,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,685.78 : 939,938.46 = 200,270.22 : x
  2. Step 2: Convert to fraction form
    626,685.78/939,938.46 = 200,270.22/x
  3. Step 3: Cross multiply
    626,685.78x = 939,938.46 × 200,270.22
  4. Step 4: Simplify right side
    626,685.78x = 188,241,682,170.66
  5. Step 5: Solve for x
    x = 188,241,682,170.66/626,685.78
  6. Step 6: Final answer
    x = 300,376.50

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Double scale
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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.