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Finding the Fourth Proportional to 662,811, 914,681.01 and 376,375.97

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Solution

The fourth proportional to 662,811, 914,681.01 and 376,375.97 is: 519,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,811 : 914,681.01 = 376,375.97 : x
  2. Step 2: Convert to fraction form
    662,811/914,681.01 = 376,375.97/x
  3. Step 3: Cross multiply
    662,811x = 914,681.01 × 376,375.97
  4. Step 4: Simplify right side
    662,811x = 344,263,947,805.93
  5. Step 5: Solve for x
    x = 344,263,947,805.93/662,811
  6. Step 6: Final answer
    x = 519,399.87

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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.