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Finding the Fourth Proportional to 452,561.28, 678,581.76 and 186,505.44

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Solution

The fourth proportional to 452,561.28, 678,581.76 and 186,505.44 is: 279,650.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,561.28 : 678,581.76 = 186,505.44 : x
  2. Step 2: Convert to fraction form
    452,561.28/678,581.76 = 186,505.44/x
  3. Step 3: Cross multiply
    452,561.28x = 678,581.76 × 186,505.44
  4. Step 4: Simplify right side
    452,561.28x = 126,559,189,724.77
  5. Step 5: Solve for x
    x = 126,559,189,724.77/452,561.28
  6. Step 6: Final answer
    x = 279,650.95

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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.