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Finding the Fourth Proportional to 637,961.28, 957,129.06 and 188,694

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Solution

The fourth proportional to 637,961.28, 957,129.06 and 188,694 is: 283,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,961.28 : 957,129.06 = 188,694 : x
  2. Step 2: Convert to fraction form
    637,961.28/957,129.06 = 188,694/x
  3. Step 3: Cross multiply
    637,961.28x = 957,129.06 × 188,694
  4. Step 4: Simplify right side
    637,961.28x = 180,604,510,847.64
  5. Step 5: Solve for x
    x = 180,604,510,847.64/637,961.28
  6. Step 6: Final answer
    x = 283,096.35

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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.