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Finding the Fourth Proportional to 297,699.20, 410,816.40 and 161,727.20

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Solution

The fourth proportional to 297,699.20, 410,816.40 and 161,727.20 is: 223,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,699.20 : 410,816.40 = 161,727.20 : x
  2. Step 2: Convert to fraction form
    297,699.20/410,816.40 = 161,727.20/x
  3. Step 3: Cross multiply
    297,699.20x = 410,816.40 × 161,727.20
  4. Step 4: Simplify right side
    297,699.20x = 66,440,186,086.08
  5. Step 5: Solve for x
    x = 66,440,186,086.08/297,699.20
  6. Step 6: Final answer
    x = 223,178.92

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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.