Home / 683,936.12-943,880.70-378,005.92

Finding the Fourth Proportional to 683,936.12, 943,880.70 and 378,005.92

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Solution

The fourth proportional to 683,936.12, 943,880.70 and 378,005.92 is: 521,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,936.12 : 943,880.70 = 378,005.92 : x
  2. Step 2: Convert to fraction form
    683,936.12/943,880.70 = 378,005.92/x
  3. Step 3: Cross multiply
    683,936.12x = 943,880.70 × 378,005.92
  4. Step 4: Simplify right side
    683,936.12x = 356,792,491,431.56
  5. Step 5: Solve for x
    x = 356,792,491,431.56/683,936.12
  6. Step 6: Final answer
    x = 521,675.17

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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.