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Finding the Fourth Proportional to 455,155.40, 682,162.20 and 241,395.71

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Solution

The fourth proportional to 455,155.40, 682,162.20 and 241,395.71 is: 361,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,155.40 : 682,162.20 = 241,395.71 : x
  2. Step 2: Convert to fraction form
    455,155.40/682,162.20 = 241,395.71/x
  3. Step 3: Cross multiply
    455,155.40x = 682,162.20 × 241,395.71
  4. Step 4: Simplify right side
    455,155.40x = 164,671,025,193.35
  5. Step 5: Solve for x
    x = 164,671,025,193.35/455,155.40
  6. Step 6: Final answer
    x = 361,790.78

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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.