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Finding the Fourth Proportional to 1,888,802.92, 2,619,896.83 and 1,820,711.08

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Solution

The fourth proportional to 1,888,802.92, 2,619,896.83 and 1,820,711.08 is: 2,525,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,802.92 : 2,619,896.83 = 1,820,711.08 : x
  2. Step 2: Convert to fraction form
    1,888,802.92/2,619,896.83 = 1,820,711.08/x
  3. Step 3: Cross multiply
    1,888,802.92x = 2,619,896.83 × 1,820,711.08
  4. Step 4: Simplify right side
    1,888,802.92x = 4,770,075,186,837.88
  5. Step 5: Solve for x
    x = 4,770,075,186,837.88/1,888,802.92
  6. Step 6: Final answer
    x = 2,525,448.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.