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Finding the Fourth Proportional to 512,776.09, 768,671.15 and 344,343.38

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Solution

The fourth proportional to 512,776.09, 768,671.15 and 344,343.38 is: 516,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,776.09 : 768,671.15 = 344,343.38 : x
  2. Step 2: Convert to fraction form
    512,776.09/768,671.15 = 344,343.38/x
  3. Step 3: Cross multiply
    512,776.09x = 768,671.15 × 344,343.38
  4. Step 4: Simplify right side
    512,776.09x = 264,686,816,334.41
  5. Step 5: Solve for x
    x = 264,686,816,334.41/512,776.09
  6. Step 6: Final answer
    x = 516,184.00

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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.