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Finding the Fourth Proportional to 297,685.12, 410,803.82 and 161,717.98

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Solution

The fourth proportional to 297,685.12, 410,803.82 and 161,717.98 is: 223,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,685.12 : 410,803.82 = 161,717.98 : x
  2. Step 2: Convert to fraction form
    297,685.12/410,803.82 = 161,717.98/x
  3. Step 3: Cross multiply
    297,685.12x = 410,803.82 × 161,717.98
  4. Step 4: Simplify right side
    297,685.12x = 66,434,361,084.07
  5. Step 5: Solve for x
    x = 66,434,361,084.07/297,685.12
  6. Step 6: Final answer
    x = 223,169.91

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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.