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Finding the Fourth Proportional to 300,671.16, 449,962.38 and 186,772.20

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Solution

The fourth proportional to 300,671.16, 449,962.38 and 186,772.20 is: 279,509.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,671.16 : 449,962.38 = 186,772.20 : x
  2. Step 2: Convert to fraction form
    300,671.16/449,962.38 = 186,772.20/x
  3. Step 3: Cross multiply
    300,671.16x = 449,962.38 × 186,772.20
  4. Step 4: Simplify right side
    300,671.16x = 84,040,463,629.84
  5. Step 5: Solve for x
    x = 84,040,463,629.84/300,671.16
  6. Step 6: Final answer
    x = 279,509.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.