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Finding the Fourth Proportional to 326,648.96, 450,764.16 and 199,537.28

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Solution

The fourth proportional to 326,648.96, 450,764.16 and 199,537.28 is: 275,354.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,648.96 : 450,764.16 = 199,537.28 : x
  2. Step 2: Convert to fraction form
    326,648.96/450,764.16 = 199,537.28/x
  3. Step 3: Cross multiply
    326,648.96x = 450,764.16 × 199,537.28
  4. Step 4: Simplify right side
    326,648.96x = 89,944,254,407.88
  5. Step 5: Solve for x
    x = 89,944,254,407.88/326,648.96
  6. Step 6: Final answer
    x = 275,354.48

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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.