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Finding the Fourth Proportional to 353,216.86, 487,424.43 and 200,265.34

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Solution

The fourth proportional to 353,216.86, 487,424.43 and 200,265.34 is: 276,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,216.86 : 487,424.43 = 200,265.34 : x
  2. Step 2: Convert to fraction form
    353,216.86/487,424.43 = 200,265.34/x
  3. Step 3: Cross multiply
    353,216.86x = 487,424.43 × 200,265.34
  4. Step 4: Simplify right side
    353,216.86x = 97,614,219,198.26
  5. Step 5: Solve for x
    x = 97,614,219,198.26/353,216.86
  6. Step 6: Final answer
    x = 276,357.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.