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Finding the Fourth Proportional to 669,149.17, 923,400.81 and 363,218.96

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Solution

The fourth proportional to 669,149.17, 923,400.81 and 363,218.96 is: 501,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,149.17 : 923,400.81 = 363,218.96 : x
  2. Step 2: Convert to fraction form
    669,149.17/923,400.81 = 363,218.96/x
  3. Step 3: Cross multiply
    669,149.17x = 923,400.81 × 363,218.96
  4. Step 4: Simplify right side
    669,149.17x = 335,396,684,179.86
  5. Step 5: Solve for x
    x = 335,396,684,179.86/669,149.17
  6. Step 6: Final answer
    x = 501,228.58

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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.