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Finding the Fourth Proportional to 326,274.75, 450,259.29 and 198,976.77

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Solution

The fourth proportional to 326,274.75, 450,259.29 and 198,976.77 is: 274,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,274.75 : 450,259.29 = 198,976.77 : x
  2. Step 2: Convert to fraction form
    326,274.75/450,259.29 = 198,976.77/x
  3. Step 3: Cross multiply
    326,274.75x = 450,259.29 × 198,976.77
  4. Step 4: Simplify right side
    326,274.75x = 89,591,139,186.69
  5. Step 5: Solve for x
    x = 89,591,139,186.69/326,274.75
  6. Step 6: Final answer
    x = 274,588.02

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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.