Home / 1,320,163.92-1,979,928.96-609,509.28

Finding the Fourth Proportional to 1,320,163.92, 1,979,928.96 and 609,509.28

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Solution

The fourth proportional to 1,320,163.92, 1,979,928.96 and 609,509.28 is: 914,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,163.92 : 1,979,928.96 = 609,509.28 : x
  2. Step 2: Convert to fraction form
    1,320,163.92/1,979,928.96 = 609,509.28/x
  3. Step 3: Cross multiply
    1,320,163.92x = 1,979,928.96 × 609,509.28
  4. Step 4: Simplify right side
    1,320,163.92x = 1,206,785,074,860.75
  5. Step 5: Solve for x
    x = 1,206,785,074,860.75/1,320,163.92
  6. Step 6: Final answer
    x = 914,117.60

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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.