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Finding the Fourth Proportional to 382,040.20, 573,060.30 and 340,705.90

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Solution

The fourth proportional to 382,040.20, 573,060.30 and 340,705.90 is: 511,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,040.20 : 573,060.30 = 340,705.90 : x
  2. Step 2: Convert to fraction form
    382,040.20/573,060.30 = 340,705.90/x
  3. Step 3: Cross multiply
    382,040.20x = 573,060.30 × 340,705.90
  4. Step 4: Simplify right side
    382,040.20x = 195,245,025,265.77
  5. Step 5: Solve for x
    x = 195,245,025,265.77/382,040.20
  6. Step 6: Final answer
    x = 511,058.85

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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.