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Finding the Fourth Proportional to 529,527.80, 794,685.46 and 213,987.44

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Solution

The fourth proportional to 529,527.80, 794,685.46 and 213,987.44 is: 321,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,527.80 : 794,685.46 = 213,987.44 : x
  2. Step 2: Convert to fraction form
    529,527.80/794,685.46 = 213,987.44/x
  3. Step 3: Cross multiply
    529,527.80x = 794,685.46 × 213,987.44
  4. Step 4: Simplify right side
    529,527.80x = 170,052,707,190.62
  5. Step 5: Solve for x
    x = 170,052,707,190.62/529,527.80
  6. Step 6: Final answer
    x = 321,140.28

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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.