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Finding the Fourth Proportional to 382,434.60, 573,870.60 and 264,190.80

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Solution

The fourth proportional to 382,434.60, 573,870.60 and 264,190.80 is: 396,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,434.60 : 573,870.60 = 264,190.80 : x
  2. Step 2: Convert to fraction form
    382,434.60/573,870.60 = 264,190.80/x
  3. Step 3: Cross multiply
    382,434.60x = 573,870.60 × 264,190.80
  4. Step 4: Simplify right side
    382,434.60x = 151,611,332,910.48
  5. Step 5: Solve for x
    x = 151,611,332,910.48/382,434.60
  6. Step 6: Final answer
    x = 396,437.28

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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.