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Finding the Fourth Proportional to 3,269,989.99, 4,905,723.12 and 995,717.77

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Solution

The fourth proportional to 3,269,989.99, 4,905,723.12 and 995,717.77 is: 1,493,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269,989.99 : 4,905,723.12 = 995,717.77 : x
  2. Step 2: Convert to fraction form
    3,269,989.99/4,905,723.12 = 995,717.77/x
  3. Step 3: Cross multiply
    3,269,989.99x = 4,905,723.12 × 995,717.77
  4. Step 4: Simplify right side
    3,269,989.99x = 4,884,715,685,283.84
  5. Step 5: Solve for x
    x = 4,884,715,685,283.84/3,269,989.99
  6. Step 6: Final answer
    x = 1,493,801.42

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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.