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Finding the Fourth Proportional to 496,352.70, 743,650.65 and 479,907.90

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Solution

The fourth proportional to 496,352.70, 743,650.65 and 479,907.90 is: 719,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,352.70 : 743,650.65 = 479,907.90 : x
  2. Step 2: Convert to fraction form
    496,352.70/743,650.65 = 479,907.90/x
  3. Step 3: Cross multiply
    496,352.70x = 743,650.65 × 479,907.90
  4. Step 4: Simplify right side
    496,352.70x = 356,883,821,775.14
  5. Step 5: Solve for x
    x = 356,883,821,775.14/496,352.70
  6. Step 6: Final answer
    x = 719,012.55

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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.