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Finding the Fourth Proportional to 672,190.32, 927,611.74 and 366,270.78

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Solution

The fourth proportional to 672,190.32, 927,611.74 and 366,270.78 is: 505,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,190.32 : 927,611.74 = 366,270.78 : x
  2. Step 2: Convert to fraction form
    672,190.32/927,611.74 = 366,270.78/x
  3. Step 3: Cross multiply
    672,190.32x = 927,611.74 × 366,270.78
  4. Step 4: Simplify right side
    672,190.32x = 339,757,075,546.96
  5. Step 5: Solve for x
    x = 339,757,075,546.96/672,190.32
  6. Step 6: Final answer
    x = 505,447.74

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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.