Home / 2,619,651.78-3,928,051.41-913,336.16

Finding the Fourth Proportional to 2,619,651.78, 3,928,051.41 and 913,336.16

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Solution

The fourth proportional to 2,619,651.78, 3,928,051.41 and 913,336.16 is: 1,369,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,651.78 : 3,928,051.41 = 913,336.16 : x
  2. Step 2: Convert to fraction form
    2,619,651.78/3,928,051.41 = 913,336.16/x
  3. Step 3: Cross multiply
    2,619,651.78x = 3,928,051.41 × 913,336.16
  4. Step 4: Simplify right side
    2,619,651.78x = 3,587,631,373,164.23
  5. Step 5: Solve for x
    x = 3,587,631,373,164.23/2,619,651.78
  6. Step 6: Final answer
    x = 1,369,506.97

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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.