Home / 683,938.45-943,883.92-378,008.25

Finding the Fourth Proportional to 683,938.45, 943,883.92 and 378,008.25

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Solution

The fourth proportional to 683,938.45, 943,883.92 and 378,008.25 is: 521,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,938.45 : 943,883.92 = 378,008.25 : x
  2. Step 2: Convert to fraction form
    683,938.45/943,883.92 = 378,008.25/x
  3. Step 3: Cross multiply
    683,938.45x = 943,883.92 × 378,008.25
  4. Step 4: Simplify right side
    683,938.45x = 356,795,904,082.92
  5. Step 5: Solve for x
    x = 356,795,904,082.92/683,938.45
  6. Step 6: Final answer
    x = 521,678.39

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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.