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Finding the Fourth Proportional to 3,111,588, 4,667,382 and 747,684

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Solution

The fourth proportional to 3,111,588, 4,667,382 and 747,684 is: 1,121,526

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,588 : 4,667,382 = 747,684 : x
  2. Step 2: Convert to fraction form
    3,111,588/4,667,382 = 747,684/x
  3. Step 3: Cross multiply
    3,111,588x = 4,667,382 × 747,684
  4. Step 4: Simplify right side
    3,111,588x = 3,489,726,843,288
  5. Step 5: Solve for x
    x = 3,489,726,843,288/3,111,588
  6. Step 6: Final answer
    x = 1,121,526

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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.