Home / 1,205,208.96-1,663,183.78-661,353.84

Finding the Fourth Proportional to 1,205,208.96, 1,663,183.78 and 661,353.84

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Solution

The fourth proportional to 1,205,208.96, 1,663,183.78 and 661,353.84 is: 912,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,208.96 : 1,663,183.78 = 661,353.84 : x
  2. Step 2: Convert to fraction form
    1,205,208.96/1,663,183.78 = 661,353.84/x
  3. Step 3: Cross multiply
    1,205,208.96x = 1,663,183.78 × 661,353.84
  4. Step 4: Simplify right side
    1,205,208.96x = 1,099,952,979,528.72
  5. Step 5: Solve for x
    x = 1,099,952,979,528.72/1,205,208.96
  6. Step 6: Final answer
    x = 912,665.78

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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.