Home / 943,644.14-1,414,469.10-643,380.38

Finding the Fourth Proportional to 943,644.14, 1,414,469.10 and 643,380.38

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Solution

The fourth proportional to 943,644.14, 1,414,469.10 and 643,380.38 is: 964,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,644.14 : 1,414,469.10 = 643,380.38 : x
  2. Step 2: Convert to fraction form
    943,644.14/1,414,469.10 = 643,380.38/x
  3. Step 3: Cross multiply
    943,644.14x = 1,414,469.10 × 643,380.38
  4. Step 4: Simplify right side
    943,644.14x = 910,041,667,056.26
  5. Step 5: Solve for x
    x = 910,041,667,056.26/943,644.14
  6. Step 6: Final answer
    x = 964,390.74

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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.