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Finding the Third Proportional to 428,900.06 and 928,409.34

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Solution

The third proportional to 428,900.06 and 928,409.34 is: 2,009,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,900.06 : 928,409.34 = 928,409.34 : x
  2. Step 2: Convert to fraction form
    428,900.06/928,409.34 = 928,409.34/x
  3. Step 3: Cross multiply
    428,900.06x = 928,409.34 × 928,409.34
  4. Step 4: Simplify right side
    428,900.06x = 861,943,909,562.31
  5. Step 5: Solve for x
    x = 861,943,909,562.31/428,900.06
  6. Step 6: Final answer
    x = 2,009,661.42

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.