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Finding the Fourth Proportional to 326,112.84, 450,040.36 and 197,033.40

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Solution

The fourth proportional to 326,112.84, 450,040.36 and 197,033.40 is: 271,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,112.84 : 450,040.36 = 197,033.40 : x
  2. Step 2: Convert to fraction form
    326,112.84/450,040.36 = 197,033.40/x
  3. Step 3: Cross multiply
    326,112.84x = 450,040.36 × 197,033.40
  4. Step 4: Simplify right side
    326,112.84x = 88,672,982,268.02
  5. Step 5: Solve for x
    x = 88,672,982,268.02/326,112.84
  6. Step 6: Final answer
    x = 271,908.90

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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.