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Finding the Fourth Proportional to 311,921.56, 430,444.56 and 184,599.28

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Solution

The fourth proportional to 311,921.56, 430,444.56 and 184,599.28 is: 254,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,921.56 : 430,444.56 = 184,599.28 : x
  2. Step 2: Convert to fraction form
    311,921.56/430,444.56 = 184,599.28/x
  3. Step 3: Cross multiply
    311,921.56x = 430,444.56 × 184,599.28
  4. Step 4: Simplify right side
    311,921.56x = 79,459,755,855.92
  5. Step 5: Solve for x
    x = 79,459,755,855.92/311,921.56
  6. Step 6: Final answer
    x = 254,742.75

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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.