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Finding the Fourth Proportional to 6,978,239.88, 10,463,073.22 and 2,713,436.92

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Solution

The fourth proportional to 6,978,239.88, 10,463,073.22 and 2,713,436.92 is: 4,068,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978,239.88 : 10,463,073.22 = 2,713,436.92 : x
  2. Step 2: Convert to fraction form
    6,978,239.88/10,463,073.22 = 2,713,436.92/x
  3. Step 3: Cross multiply
    6,978,239.88x = 10,463,073.22 × 2,713,436.92
  4. Step 4: Simplify right side
    6,978,239.88x = 28,390,889,171,811.29
  5. Step 5: Solve for x
    x = 28,390,889,171,811.29/6,978,239.88
  6. Step 6: Final answer
    x = 4,068,488.57

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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.