Home / 1,973,390.25-2,960,553.38-643,694.25

Finding the Fourth Proportional to 1,973,390.25, 2,960,553.38 and 643,694.25

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Solution

The fourth proportional to 1,973,390.25, 2,960,553.38 and 643,694.25 is: 965,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,390.25 : 2,960,553.38 = 643,694.25 : x
  2. Step 2: Convert to fraction form
    1,973,390.25/2,960,553.38 = 643,694.25/x
  3. Step 3: Cross multiply
    1,973,390.25x = 2,960,553.38 × 643,694.25
  4. Step 4: Simplify right side
    1,973,390.25x = 1,905,691,184,305.59
  5. Step 5: Solve for x
    x = 1,905,691,184,305.59/1,973,390.25
  6. Step 6: Final answer
    x = 965,694.03

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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.