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Finding the Fourth Proportional to 502,720.44, 693,749.32 and 374,233.48

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Solution

The fourth proportional to 502,720.44, 693,749.32 and 374,233.48 is: 516,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,720.44 : 693,749.32 = 374,233.48 : x
  2. Step 2: Convert to fraction form
    502,720.44/693,749.32 = 374,233.48/x
  3. Step 3: Cross multiply
    502,720.44x = 693,749.32 × 374,233.48
  4. Step 4: Simplify right side
    502,720.44x = 259,624,222,271.23
  5. Step 5: Solve for x
    x = 259,624,222,271.23/502,720.44
  6. Step 6: Final answer
    x = 516,438.56

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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.