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Finding the Fourth Proportional to 575,375.15, 863,354.25 and 383,380.82

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Solution

The fourth proportional to 575,375.15, 863,354.25 and 383,380.82 is: 575,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,375.15 : 863,354.25 = 383,380.82 : x
  2. Step 2: Convert to fraction form
    575,375.15/863,354.25 = 383,380.82/x
  3. Step 3: Cross multiply
    575,375.15x = 863,354.25 × 383,380.82
  4. Step 4: Simplify right side
    575,375.15x = 330,993,460,315.49
  5. Step 5: Solve for x
    x = 330,993,460,315.49/575,375.15
  6. Step 6: Final answer
    x = 575,265.48

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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.