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Finding the Fourth Proportional to 626,086.62, 863,998.65 and 339,606.36

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Solution

The fourth proportional to 626,086.62, 863,998.65 and 339,606.36 is: 468,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,086.62 : 863,998.65 = 339,606.36 : x
  2. Step 2: Convert to fraction form
    626,086.62/863,998.65 = 339,606.36/x
  3. Step 3: Cross multiply
    626,086.62x = 863,998.65 × 339,606.36
  4. Step 4: Simplify right side
    626,086.62x = 293,419,436,571.41
  5. Step 5: Solve for x
    x = 293,419,436,571.41/626,086.62
  6. Step 6: Final answer
    x = 468,656.30

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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.