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Finding the Fourth Proportional to 457,260.60, 685,890.90 and 297,828.30

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Solution

The fourth proportional to 457,260.60, 685,890.90 and 297,828.30 is: 446,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,260.60 : 685,890.90 = 297,828.30 : x
  2. Step 2: Convert to fraction form
    457,260.60/685,890.90 = 297,828.30/x
  3. Step 3: Cross multiply
    457,260.60x = 685,890.90 × 297,828.30
  4. Step 4: Simplify right side
    457,260.60x = 204,277,720,732.47
  5. Step 5: Solve for x
    x = 204,277,720,732.47/457,260.60
  6. Step 6: Final answer
    x = 446,742.45

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