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Finding the Fourth Proportional to 366,845.40, 550,268.10 and 317,637.90

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Solution

The fourth proportional to 366,845.40, 550,268.10 and 317,637.90 is: 476,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,845.40 : 550,268.10 = 317,637.90 : x
  2. Step 2: Convert to fraction form
    366,845.40/550,268.10 = 317,637.90/x
  3. Step 3: Cross multiply
    366,845.40x = 550,268.10 × 317,637.90
  4. Step 4: Simplify right side
    366,845.40x = 174,786,003,720.99
  5. Step 5: Solve for x
    x = 174,786,003,720.99/366,845.40
  6. Step 6: Final answer
    x = 476,456.85

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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.