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Finding the Fourth Proportional to 326,699.20, 450,893.70 and 199,448.68

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Solution

The fourth proportional to 326,699.20, 450,893.70 and 199,448.68 is: 275,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,699.20 : 450,893.70 = 199,448.68 : x
  2. Step 2: Convert to fraction form
    326,699.20/450,893.70 = 199,448.68/x
  3. Step 3: Cross multiply
    326,699.20x = 450,893.70 × 199,448.68
  4. Step 4: Simplify right side
    326,699.20x = 89,930,153,285.32
  5. Step 5: Solve for x
    x = 89,930,153,285.32/326,699.20
  6. Step 6: Final answer
    x = 275,268.97

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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.