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Finding the Fourth Proportional to 1,294,789.56, 1,786,817.24 and 751,249.08

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Solution

The fourth proportional to 1,294,789.56, 1,786,817.24 and 751,249.08 is: 1,036,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,789.56 : 1,786,817.24 = 751,249.08 : x
  2. Step 2: Convert to fraction form
    1,294,789.56/1,786,817.24 = 751,249.08/x
  3. Step 3: Cross multiply
    1,294,789.56x = 1,786,817.24 × 751,249.08
  4. Step 4: Simplify right side
    1,294,789.56x = 1,342,344,807,678.14
  5. Step 5: Solve for x
    x = 1,342,344,807,678.14/1,294,789.56
  6. Step 6: Final answer
    x = 1,036,728.17

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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.