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Finding the Fourth Proportional to 443,830.82, 612,600.45 and 273,967.34

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Solution

The fourth proportional to 443,830.82, 612,600.45 and 273,967.34 is: 378,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,830.82 : 612,600.45 = 273,967.34 : x
  2. Step 2: Convert to fraction form
    443,830.82/612,600.45 = 273,967.34/x
  3. Step 3: Cross multiply
    443,830.82x = 612,600.45 × 273,967.34
  4. Step 4: Simplify right side
    443,830.82x = 167,832,515,769.30
  5. Step 5: Solve for x
    x = 167,832,515,769.30/443,830.82
  6. Step 6: Final answer
    x = 378,145.25

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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.