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Finding the Fourth Proportional to 350,923.62, 484,278.40 and 189,781.80

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Solution

The fourth proportional to 350,923.62, 484,278.40 and 189,781.80 is: 261,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,923.62 : 484,278.40 = 189,781.80 : x
  2. Step 2: Convert to fraction form
    350,923.62/484,278.40 = 189,781.80/x
  3. Step 3: Cross multiply
    350,923.62x = 484,278.40 × 189,781.80
  4. Step 4: Simplify right side
    350,923.62x = 91,907,226,453.12
  5. Step 5: Solve for x
    x = 91,907,226,453.12/350,923.62
  6. Step 6: Final answer
    x = 261,900.94

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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.