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Finding the Fourth Proportional to 543,991.09, 810,519.08 and 513,432.64

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Solution

The fourth proportional to 543,991.09, 810,519.08 and 513,432.64 is: 764,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,991.09 : 810,519.08 = 513,432.64 : x
  2. Step 2: Convert to fraction form
    543,991.09/810,519.08 = 513,432.64/x
  3. Step 3: Cross multiply
    543,991.09x = 810,519.08 × 513,432.64
  4. Step 4: Simplify right side
    543,991.09x = 416,146,951,014.77
  5. Step 5: Solve for x
    x = 416,146,951,014.77/543,991.09
  6. Step 6: Final answer
    x = 764,988.54

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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.