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Finding the Fourth Proportional to 2,006,980.07, 2,769,633.92 and 1,089,209.00

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Solution

The fourth proportional to 2,006,980.07, 2,769,633.92 and 1,089,209.00 is: 1,503,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006,980.07 : 2,769,633.92 = 1,089,209.00 : x
  2. Step 2: Convert to fraction form
    2,006,980.07/2,769,633.92 = 1,089,209.00/x
  3. Step 3: Cross multiply
    2,006,980.07x = 2,769,633.92 × 1,089,209.00
  4. Step 4: Simplify right side
    2,006,980.07x = 3,016,710,202,016.39
  5. Step 5: Solve for x
    x = 3,016,710,202,016.39/2,006,980.07
  6. Step 6: Final answer
    x = 1,503,109.20

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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.