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Finding the Fourth Proportional to 1,111,986, 1,667,993.64 and 364,032

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Solution

The fourth proportional to 1,111,986, 1,667,993.64 and 364,032 is: 546,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,986 : 1,667,993.64 = 364,032 : x
  2. Step 2: Convert to fraction form
    1,111,986/1,667,993.64 = 364,032/x
  3. Step 3: Cross multiply
    1,111,986x = 1,667,993.64 × 364,032
  4. Step 4: Simplify right side
    1,111,986x = 607,203,060,756.48
  5. Step 5: Solve for x
    x = 607,203,060,756.48/1,111,986
  6. Step 6: Final answer
    x = 546,052.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.