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Finding the Fourth Proportional to 311,761.56, 430,235.10 and 184,433.88

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Solution

The fourth proportional to 311,761.56, 430,235.10 and 184,433.88 is: 254,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,761.56 : 430,235.10 = 184,433.88 : x
  2. Step 2: Convert to fraction form
    311,761.56/430,235.10 = 184,433.88/x
  3. Step 3: Cross multiply
    311,761.56x = 430,235.10 × 184,433.88
  4. Step 4: Simplify right side
    311,761.56x = 79,349,928,805.19
  5. Step 5: Solve for x
    x = 79,349,928,805.19/311,761.56
  6. Step 6: Final answer
    x = 254,521.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.