Home / 1,231,936.56-1,699,952.40-688,029.12

Finding the Fourth Proportional to 1,231,936.56, 1,699,952.40 and 688,029.12

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Solution

The fourth proportional to 1,231,936.56, 1,699,952.40 and 688,029.12 is: 949,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,936.56 : 1,699,952.40 = 688,029.12 : x
  2. Step 2: Convert to fraction form
    1,231,936.56/1,699,952.40 = 688,029.12/x
  3. Step 3: Cross multiply
    1,231,936.56x = 1,699,952.40 × 688,029.12
  4. Step 4: Simplify right side
    1,231,936.56x = 1,169,616,753,813.89
  5. Step 5: Solve for x
    x = 1,169,616,753,813.89/1,231,936.56
  6. Step 6: Final answer
    x = 949,413.14

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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.