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Finding the Fourth Proportional to 673,679, 929,677.02 and 371,873

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Solution

The fourth proportional to 673,679, 929,677.02 and 371,873 is: 513,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,679 : 929,677.02 = 371,873 : x
  2. Step 2: Convert to fraction form
    673,679/929,677.02 = 371,873/x
  3. Step 3: Cross multiply
    673,679x = 929,677.02 × 371,873
  4. Step 4: Simplify right side
    673,679x = 345,721,782,458.46
  5. Step 5: Solve for x
    x = 345,721,782,458.46/673,679
  6. Step 6: Final answer
    x = 513,184.74

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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.