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Finding the Fourth Proportional to 591,219.60, 886,656.60 and 212,096.40

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Solution

The fourth proportional to 591,219.60, 886,656.60 and 212,096.40 is: 318,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,219.60 : 886,656.60 = 212,096.40 : x
  2. Step 2: Convert to fraction form
    591,219.60/886,656.60 = 212,096.40/x
  3. Step 3: Cross multiply
    591,219.60x = 886,656.60 × 212,096.40
  4. Step 4: Simplify right side
    591,219.60x = 188,056,672,896.24
  5. Step 5: Solve for x
    x = 188,056,672,896.24/591,219.60
  6. Step 6: Final answer
    x = 318,082.61

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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.