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Finding the Fourth Proportional to 447,791.40, 671,672.70 and 148,285.80

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Solution

The fourth proportional to 447,791.40, 671,672.70 and 148,285.80 is: 222,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,791.40 : 671,672.70 = 148,285.80 : x
  2. Step 2: Convert to fraction form
    447,791.40/671,672.70 = 148,285.80/x
  3. Step 3: Cross multiply
    447,791.40x = 671,672.70 × 148,285.80
  4. Step 4: Simplify right side
    447,791.40x = 99,599,523,657.66
  5. Step 5: Solve for x
    x = 99,599,523,657.66/447,791.40
  6. Step 6: Final answer
    x = 222,423.93

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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.