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Finding the Fourth Proportional to 365,687.70, 504,445.93 and 212,708.67

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Solution

The fourth proportional to 365,687.70, 504,445.93 and 212,708.67 is: 293,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,687.70 : 504,445.93 = 212,708.67 : x
  2. Step 2: Convert to fraction form
    365,687.70/504,445.93 = 212,708.67/x
  3. Step 3: Cross multiply
    365,687.70x = 504,445.93 × 212,708.67
  4. Step 4: Simplify right side
    365,687.70x = 107,300,021,793.67
  5. Step 5: Solve for x
    x = 107,300,021,793.67/365,687.70
  6. Step 6: Final answer
    x = 293,419.83

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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.