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Finding the Fourth Proportional to 638,481.40, 881,093.83 and 352,028.14

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Solution

The fourth proportional to 638,481.40, 881,093.83 and 352,028.14 is: 485,793.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,481.40 : 881,093.83 = 352,028.14 : x
  2. Step 2: Convert to fraction form
    638,481.40/881,093.83 = 352,028.14/x
  3. Step 3: Cross multiply
    638,481.40x = 881,093.83 × 352,028.14
  4. Step 4: Simplify right side
    638,481.40x = 310,169,815,974.77
  5. Step 5: Solve for x
    x = 310,169,815,974.77/638,481.40
  6. Step 6: Final answer
    x = 485,793.04

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1.5x scale

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.