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Finding the Fourth Proportional to 683,950.44, 943,900.44 and 378,020.24

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Solution

The fourth proportional to 683,950.44, 943,900.44 and 378,020.24 is: 521,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,950.44 : 943,900.44 = 378,020.24 : x
  2. Step 2: Convert to fraction form
    683,950.44/943,900.44 = 378,020.24/x
  3. Step 3: Cross multiply
    683,950.44x = 943,900.44 × 378,020.24
  4. Step 4: Simplify right side
    683,950.44x = 356,813,470,864.91
  5. Step 5: Solve for x
    x = 356,813,470,864.91/683,950.44
  6. Step 6: Final answer
    x = 521,694.92

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Double scale
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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.