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Finding the Fourth Proportional to 494,561.76, 741,840.78 and 178,944.84

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Solution

The fourth proportional to 494,561.76, 741,840.78 and 178,944.84 is: 268,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,561.76 : 741,840.78 = 178,944.84 : x
  2. Step 2: Convert to fraction form
    494,561.76/741,840.78 = 178,944.84/x
  3. Step 3: Cross multiply
    494,561.76x = 741,840.78 × 178,944.84
  4. Step 4: Simplify right side
    494,561.76x = 132,748,579,682.58
  5. Step 5: Solve for x
    x = 132,748,579,682.58/494,561.76
  6. Step 6: Final answer
    x = 268,416.59

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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.