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Finding the Fourth Proportional to 626,533.87, 939,953.89 and 200,069.79

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Solution

The fourth proportional to 626,533.87, 939,953.89 and 200,069.79 is: 300,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,533.87 : 939,953.89 = 200,069.79 : x
  2. Step 2: Convert to fraction form
    626,533.87/939,953.89 = 200,069.79/x
  3. Step 3: Cross multiply
    626,533.87x = 939,953.89 × 200,069.79
  4. Step 4: Simplify right side
    626,533.87x = 188,056,377,381.98
  5. Step 5: Solve for x
    x = 188,056,377,381.98/626,533.87
  6. Step 6: Final answer
    x = 300,153.57

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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.