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Finding the Fourth Proportional to 311,633.30, 467,449.91 and 74,975.98

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Solution

The fourth proportional to 311,633.30, 467,449.91 and 74,975.98 is: 112,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,633.30 : 467,449.91 = 74,975.98 : x
  2. Step 2: Convert to fraction form
    311,633.30/467,449.91 = 74,975.98/x
  3. Step 3: Cross multiply
    311,633.30x = 467,449.91 × 74,975.98
  4. Step 4: Simplify right side
    311,633.30x = 35,047,512,953.35
  5. Step 5: Solve for x
    x = 35,047,512,953.35/311,633.30
  6. Step 6: Final answer
    x = 112,463.96

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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.