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Finding the Fourth Proportional to 683,944.48, 943,813.94 and 378,005.06

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Solution

The fourth proportional to 683,944.48, 943,813.94 and 378,005.06 is: 521,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,944.48 : 943,813.94 = 378,005.06 : x
  2. Step 2: Convert to fraction form
    683,944.48/943,813.94 = 378,005.06/x
  3. Step 3: Cross multiply
    683,944.48x = 943,813.94 × 378,005.06
  4. Step 4: Simplify right side
    683,944.48x = 356,766,445,018.54
  5. Step 5: Solve for x
    x = 356,766,445,018.54/683,944.48
  6. Step 6: Final answer
    x = 521,630.71

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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.