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Finding the Fourth Proportional to 269,352.48, 403,989.84 and 82,313.76

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Solution

The fourth proportional to 269,352.48, 403,989.84 and 82,313.76 is: 123,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,352.48 : 403,989.84 = 82,313.76 : x
  2. Step 2: Convert to fraction form
    269,352.48/403,989.84 = 82,313.76/x
  3. Step 3: Cross multiply
    269,352.48x = 403,989.84 × 82,313.76
  4. Step 4: Simplify right side
    269,352.48x = 33,253,922,732.20
  5. Step 5: Solve for x
    x = 33,253,922,732.20/269,352.48
  6. Step 6: Final answer
    x = 123,458.76

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1.5x scale

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.