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Finding the Fourth Proportional to 454,881.60, 682,711.20 and 202,550.40

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Solution

The fourth proportional to 454,881.60, 682,711.20 and 202,550.40 is: 303,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,881.60 : 682,711.20 = 202,550.40 : x
  2. Step 2: Convert to fraction form
    454,881.60/682,711.20 = 202,550.40/x
  3. Step 3: Cross multiply
    454,881.60x = 682,711.20 × 202,550.40
  4. Step 4: Simplify right side
    454,881.60x = 138,283,426,644.48
  5. Step 5: Solve for x
    x = 138,283,426,644.48/454,881.60
  6. Step 6: Final answer
    x = 303,998.73

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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.