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Finding the Fourth Proportional to 677,906.28, 935,505.99 and 376,100.28

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Solution

The fourth proportional to 677,906.28, 935,505.99 and 376,100.28 is: 519,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,906.28 : 935,505.99 = 376,100.28 : x
  2. Step 2: Convert to fraction form
    677,906.28/935,505.99 = 376,100.28/x
  3. Step 3: Cross multiply
    677,906.28x = 935,505.99 × 376,100.28
  4. Step 4: Simplify right side
    677,906.28x = 351,844,064,780.68
  5. Step 5: Solve for x
    x = 351,844,064,780.68/677,906.28
  6. Step 6: Final answer
    x = 519,015.79

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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.