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Finding the Fourth Proportional to 382,141.80, 573,212.70 and 376,236.90

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Solution

The fourth proportional to 382,141.80, 573,212.70 and 376,236.90 is: 564,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,141.80 : 573,212.70 = 376,236.90 : x
  2. Step 2: Convert to fraction form
    382,141.80/573,212.70 = 376,236.90/x
  3. Step 3: Cross multiply
    382,141.80x = 573,212.70 × 376,236.90
  4. Step 4: Simplify right side
    382,141.80x = 215,663,769,288.63
  5. Step 5: Solve for x
    x = 215,663,769,288.63/382,141.80
  6. Step 6: Final answer
    x = 564,355.35

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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.