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Finding the Fourth Proportional to 297,769.11, 410,920.59 and 161,803.07

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Solution

The fourth proportional to 297,769.11, 410,920.59 and 161,803.07 is: 223,287.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,769.11 : 410,920.59 = 161,803.07 : x
  2. Step 2: Convert to fraction form
    297,769.11/410,920.59 = 161,803.07/x
  3. Step 3: Cross multiply
    297,769.11x = 410,920.59 × 161,803.07
  4. Step 4: Simplify right side
    297,769.11x = 66,488,211,960.91
  5. Step 5: Solve for x
    x = 66,488,211,960.91/297,769.11
  6. Step 6: Final answer
    x = 223,287.81

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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.