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Finding the Fourth Proportional to 669,199.28, 923,474.28 and 363,261.20

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Solution

The fourth proportional to 669,199.28, 923,474.28 and 363,261.20 is: 501,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,199.28 : 923,474.28 = 363,261.20 : x
  2. Step 2: Convert to fraction form
    669,199.28/923,474.28 = 363,261.20/x
  3. Step 3: Cross multiply
    669,199.28x = 923,474.28 × 363,261.20
  4. Step 4: Simplify right side
    669,199.28x = 335,462,375,121.94
  5. Step 5: Solve for x
    x = 335,462,375,121.94/669,199.28
  6. Step 6: Final answer
    x = 501,289.21

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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.