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Finding the Fourth Proportional to 447,213.77, 670,824.65 and 127,365.35

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Solution

The fourth proportional to 447,213.77, 670,824.65 and 127,365.35 is: 191,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,213.77 : 670,824.65 = 127,365.35 : x
  2. Step 2: Convert to fraction form
    447,213.77/670,824.65 = 127,365.35/x
  3. Step 3: Cross multiply
    447,213.77x = 670,824.65 × 127,365.35
  4. Step 4: Simplify right side
    447,213.77x = 85,439,816,335.88
  5. Step 5: Solve for x
    x = 85,439,816,335.88/447,213.77
  6. Step 6: Final answer
    x = 191,049.16

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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.