Home / 683,936.31-943,880.95-378,006.11

Finding the Fourth Proportional to 683,936.31, 943,880.95 and 378,006.11

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Solution

The fourth proportional to 683,936.31, 943,880.95 and 378,006.11 is: 521,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,936.31 : 943,880.95 = 378,006.11 : x
  2. Step 2: Convert to fraction form
    683,936.31/943,880.95 = 378,006.11/x
  3. Step 3: Cross multiply
    683,936.31x = 943,880.95 × 378,006.11
  4. Step 4: Simplify right side
    683,936.31x = 356,792,768,688.31
  5. Step 5: Solve for x
    x = 356,792,768,688.31/683,936.31
  6. Step 6: Final answer
    x = 521,675.43

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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.