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Finding the Fourth Proportional to 537,996.40, 806,908.20 and 163,932.40

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Solution

The fourth proportional to 537,996.40, 806,908.20 and 163,932.40 is: 245,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,996.40 : 806,908.20 = 163,932.40 : x
  2. Step 2: Convert to fraction form
    537,996.40/806,908.20 = 163,932.40/x
  3. Step 3: Cross multiply
    537,996.40x = 806,908.20 × 163,932.40
  4. Step 4: Simplify right side
    537,996.40x = 132,278,397,805.68
  5. Step 5: Solve for x
    x = 132,278,397,805.68/537,996.40
  6. Step 6: Final answer
    x = 245,872.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.