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Finding the Fourth Proportional to 447,996.61, 671,761.63 and 211,275.73

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Solution

The fourth proportional to 447,996.61, 671,761.63 and 211,275.73 is: 316,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,996.61 : 671,761.63 = 211,275.73 : x
  2. Step 2: Convert to fraction form
    447,996.61/671,761.63 = 211,275.73/x
  3. Step 3: Cross multiply
    447,996.61x = 671,761.63 × 211,275.73
  4. Step 4: Simplify right side
    447,996.61x = 141,926,928,764.24
  5. Step 5: Solve for x
    x = 141,926,928,764.24/447,996.61
  6. Step 6: Final answer
    x = 316,803.58

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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.