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Finding the Fourth Proportional to 404,912.60, 607,383.30 and 124,429.40

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Solution

The fourth proportional to 404,912.60, 607,383.30 and 124,429.40 is: 186,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,912.60 : 607,383.30 = 124,429.40 : x
  2. Step 2: Convert to fraction form
    404,912.60/607,383.30 = 124,429.40/x
  3. Step 3: Cross multiply
    404,912.60x = 607,383.30 × 124,429.40
  4. Step 4: Simplify right side
    404,912.60x = 75,576,339,589.02
  5. Step 5: Solve for x
    x = 75,576,339,589.02/404,912.60
  6. Step 6: Final answer
    x = 186,648.53

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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.