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Finding the Fourth Proportional to 3,798,500.07, 5,241,945.38 and 2,079,780.51

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Solution

The fourth proportional to 3,798,500.07, 5,241,945.38 and 2,079,780.51 is: 2,870,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798,500.07 : 5,241,945.38 = 2,079,780.51 : x
  2. Step 2: Convert to fraction form
    3,798,500.07/5,241,945.38 = 2,079,780.51/x
  3. Step 3: Cross multiply
    3,798,500.07x = 5,241,945.38 × 2,079,780.51
  4. Step 4: Simplify right side
    3,798,500.07x = 10,902,095,825,409.64
  5. Step 5: Solve for x
    x = 10,902,095,825,409.64/3,798,500.07
  6. Step 6: Final answer
    x = 2,870,105.47

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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.