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Finding the Fourth Proportional to 3,766,688.94, 5,197,797.88 and 2,112,745.08

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Solution

The fourth proportional to 3,766,688.94, 5,197,797.88 and 2,112,745.08 is: 2,915,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766,688.94 : 5,197,797.88 = 2,112,745.08 : x
  2. Step 2: Convert to fraction form
    3,766,688.94/5,197,797.88 = 2,112,745.08/x
  3. Step 3: Cross multiply
    3,766,688.94x = 5,197,797.88 × 2,112,745.08
  4. Step 4: Simplify right side
    3,766,688.94x = 10,981,621,897,804.43
  5. Step 5: Solve for x
    x = 10,981,621,897,804.43/3,766,688.94
  6. Step 6: Final answer
    x = 2,915,457.60

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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.