Home / 683,936.49-943,881.20-378,006.30

Finding the Fourth Proportional to 683,936.49, 943,881.20 and 378,006.30

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Solution

The fourth proportional to 683,936.49, 943,881.20 and 378,006.30 is: 521,675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,936.49 : 943,881.20 = 378,006.30 : x
  2. Step 2: Convert to fraction form
    683,936.49/943,881.20 = 378,006.30/x
  3. Step 3: Cross multiply
    683,936.49x = 943,881.20 × 378,006.30
  4. Step 4: Simplify right side
    683,936.49x = 356,793,040,996.58
  5. Step 5: Solve for x
    x = 356,793,040,996.58/683,936.49
  6. Step 6: Final answer
    x = 521,675.69

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1.5x scale

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.