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Finding the Fourth Proportional to 2,006,879.72, 2,769,495.84 and 1,089,109.02

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Solution

The fourth proportional to 2,006,879.72, 2,769,495.84 and 1,089,109.02 is: 1,502,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006,879.72 : 2,769,495.84 = 1,089,109.02 : x
  2. Step 2: Convert to fraction form
    2,006,879.72/2,769,495.84 = 1,089,109.02/x
  3. Step 3: Cross multiply
    2,006,879.72x = 2,769,495.84 × 1,089,109.02
  4. Step 4: Simplify right side
    2,006,879.72x = 3,016,282,904,280.64
  5. Step 5: Solve for x
    x = 3,016,282,904,280.64/2,006,879.72
  6. Step 6: Final answer
    x = 1,502,971.44

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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.