Home / 686,212.80-946,655.04-444,576.96

Finding the Fourth Proportional to 686,212.80, 946,655.04 and 444,576.96

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Solution

The fourth proportional to 686,212.80, 946,655.04 and 444,576.96 is: 613,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,212.80 : 946,655.04 = 444,576.96 : x
  2. Step 2: Convert to fraction form
    686,212.80/946,655.04 = 444,576.96/x
  3. Step 3: Cross multiply
    686,212.80x = 946,655.04 × 444,576.96
  4. Step 4: Simplify right side
    686,212.80x = 420,861,019,851.88
  5. Step 5: Solve for x
    x = 420,861,019,851.88/686,212.80
  6. Step 6: Final answer
    x = 613,309.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.