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Finding the Fourth Proportional to 3,357,943.91, 4,633,978.21 and 1,907,718.92

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Solution

The fourth proportional to 3,357,943.91, 4,633,978.21 and 1,907,718.92 is: 2,632,660.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357,943.91 : 4,633,978.21 = 1,907,718.92 : x
  2. Step 2: Convert to fraction form
    3,357,943.91/4,633,978.21 = 1,907,718.92/x
  3. Step 3: Cross multiply
    3,357,943.91x = 4,633,978.21 × 1,907,718.92
  4. Step 4: Simplify right side
    3,357,943.91x = 8,840,327,882,914.84
  5. Step 5: Solve for x
    x = 8,840,327,882,914.84/3,357,943.91
  6. Step 6: Final answer
    x = 2,632,660.98

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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.