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Finding the Fourth Proportional to 682,455.50, 941,785.94 and 376,550.92

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Solution

The fourth proportional to 682,455.50, 941,785.94 and 376,550.92 is: 519,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,455.50 : 941,785.94 = 376,550.92 : x
  2. Step 2: Convert to fraction form
    682,455.50/941,785.94 = 376,550.92/x
  3. Step 3: Cross multiply
    682,455.50x = 941,785.94 × 376,550.92
  4. Step 4: Simplify right side
    682,455.50x = 354,630,364,268.68
  5. Step 5: Solve for x
    x = 354,630,364,268.68/682,455.50
  6. Step 6: Final answer
    x = 519,638.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.