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Finding the Fourth Proportional to 1,294,790.07, 1,786,817.94 and 751,249.56

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Solution

The fourth proportional to 1,294,790.07, 1,786,817.94 and 751,249.56 is: 1,036,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,790.07 : 1,786,817.94 = 751,249.56 : x
  2. Step 2: Convert to fraction form
    1,294,790.07/1,786,817.94 = 751,249.56/x
  3. Step 3: Cross multiply
    1,294,790.07x = 1,786,817.94 × 751,249.56
  4. Step 4: Simplify right side
    1,294,790.07x = 1,342,346,191,225.11
  5. Step 5: Solve for x
    x = 1,342,346,191,225.11/1,294,790.07
  6. Step 6: Final answer
    x = 1,036,728.83

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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.