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Finding the Fourth Proportional to 518,539.93, 777,834.50 and 251,982.90

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Solution

The fourth proportional to 518,539.93, 777,834.50 and 251,982.90 is: 377,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,539.93 : 777,834.50 = 251,982.90 : x
  2. Step 2: Convert to fraction form
    518,539.93/777,834.50 = 251,982.90/x
  3. Step 3: Cross multiply
    518,539.93x = 777,834.50 × 251,982.90
  4. Step 4: Simplify right side
    518,539.93x = 196,000,991,770.14
  5. Step 5: Solve for x
    x = 196,000,991,770.14/518,539.93
  6. Step 6: Final answer
    x = 377,986.31

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1.5x scale

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.