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Finding the Fourth Proportional to 498,262.32, 687,604.14 and 271,912.68

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Solution

The fourth proportional to 498,262.32, 687,604.14 and 271,912.68 is: 375,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,262.32 : 687,604.14 = 271,912.68 : x
  2. Step 2: Convert to fraction form
    498,262.32/687,604.14 = 271,912.68/x
  3. Step 3: Cross multiply
    498,262.32x = 687,604.14 × 271,912.68
  4. Step 4: Simplify right side
    498,262.32x = 186,968,284,486.50
  5. Step 5: Solve for x
    x = 186,968,284,486.50/498,262.32
  6. Step 6: Final answer
    x = 375,240.67

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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.