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Finding the Fourth Proportional to 644,659.75, 966,989.62 and 223,936.03

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Solution

The fourth proportional to 644,659.75, 966,989.62 and 223,936.03 is: 335,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,659.75 : 966,989.62 = 223,936.03 : x
  2. Step 2: Convert to fraction form
    644,659.75/966,989.62 = 223,936.03/x
  3. Step 3: Cross multiply
    644,659.75x = 966,989.62 × 223,936.03
  4. Step 4: Simplify right side
    644,659.75x = 216,543,811,719.06
  5. Step 5: Solve for x
    x = 216,543,811,719.06/644,659.75
  6. Step 6: Final answer
    x = 335,904.04

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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.