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Finding the Fourth Proportional to 1,815,843.14, 2,505,812.32 and 1,041,603.22

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Solution

The fourth proportional to 1,815,843.14, 2,505,812.32 and 1,041,603.22 is: 1,437,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,843.14 : 2,505,812.32 = 1,041,603.22 : x
  2. Step 2: Convert to fraction form
    1,815,843.14/2,505,812.32 = 1,041,603.22/x
  3. Step 3: Cross multiply
    1,815,843.14x = 2,505,812.32 × 1,041,603.22
  4. Step 4: Simplify right side
    1,815,843.14x = 2,610,062,181,227.67
  5. Step 5: Solve for x
    x = 2,610,062,181,227.67/1,815,843.14
  6. Step 6: Final answer
    x = 1,437,383.07

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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.