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Finding the Fourth Proportional to 699,652.17, 965,348.73 and 393,669

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Solution

The fourth proportional to 699,652.17, 965,348.73 and 393,669 is: 543,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,652.17 : 965,348.73 = 393,669 : x
  2. Step 2: Convert to fraction form
    699,652.17/965,348.73 = 393,669/x
  3. Step 3: Cross multiply
    699,652.17x = 965,348.73 × 393,669
  4. Step 4: Simplify right side
    699,652.17x = 380,027,869,190.37
  5. Step 5: Solve for x
    x = 380,027,869,190.37/699,652.17
  6. Step 6: Final answer
    x = 543,166.86

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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.