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Finding the Fourth Proportional to 2,621,995.84, 3,932,993.76 and 940,280.32

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Solution

The fourth proportional to 2,621,995.84, 3,932,993.76 and 940,280.32 is: 1,410,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,995.84 : 3,932,993.76 = 940,280.32 : x
  2. Step 2: Convert to fraction form
    2,621,995.84/3,932,993.76 = 940,280.32/x
  3. Step 3: Cross multiply
    2,621,995.84x = 3,932,993.76 × 940,280.32
  4. Step 4: Simplify right side
    2,621,995.84x = 3,698,116,631,210.80
  5. Step 5: Solve for x
    x = 3,698,116,631,210.80/2,621,995.84
  6. Step 6: Final answer
    x = 1,410,420.48

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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.