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Finding the Fourth Proportional to 543,991.59, 810,519.83 and 513,433.14

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Solution

The fourth proportional to 543,991.59, 810,519.83 and 513,433.14 is: 764,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,991.59 : 810,519.83 = 513,433.14 : x
  2. Step 2: Convert to fraction form
    543,991.59/810,519.83 = 513,433.14/x
  3. Step 3: Cross multiply
    543,991.59x = 810,519.83 × 513,433.14
  4. Step 4: Simplify right side
    543,991.59x = 416,147,738,782.00
  5. Step 5: Solve for x
    x = 416,147,738,782.00/543,991.59
  6. Step 6: Final answer
    x = 764,989.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.