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Finding the Fourth Proportional to 2,867,655.02, 3,956,900.83 and 1,643,735.30

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Solution

The fourth proportional to 2,867,655.02, 3,956,900.83 and 1,643,735.30 is: 2,268,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867,655.02 : 3,956,900.83 = 1,643,735.30 : x
  2. Step 2: Convert to fraction form
    2,867,655.02/3,956,900.83 = 1,643,735.30/x
  3. Step 3: Cross multiply
    2,867,655.02x = 3,956,900.83 × 1,643,735.30
  4. Step 4: Simplify right side
    2,867,655.02x = 6,504,097,548,976.46
  5. Step 5: Solve for x
    x = 6,504,097,548,976.46/2,867,655.02
  6. Step 6: Final answer
    x = 2,268,089.26

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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.