Home / 683,939.92-943,885.93-378,009.73

Finding the Fourth Proportional to 683,939.92, 943,885.93 and 378,009.73

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Solution

The fourth proportional to 683,939.92, 943,885.93 and 378,009.73 is: 521,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,939.92 : 943,885.93 = 378,009.73 : x
  2. Step 2: Convert to fraction form
    683,939.92/943,885.93 = 378,009.73/x
  3. Step 3: Cross multiply
    683,939.92x = 943,885.93 × 378,009.73
  4. Step 4: Simplify right side
    683,939.92x = 356,798,062,245.36
  5. Step 5: Solve for x
    x = 356,798,062,245.36/683,939.92
  6. Step 6: Final answer
    x = 521,680.42

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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.