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Finding the Fourth Proportional to 622,709.25, 934,064.78 and 173,431.41

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Solution

The fourth proportional to 622,709.25, 934,064.78 and 173,431.41 is: 260,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,709.25 : 934,064.78 = 173,431.41 : x
  2. Step 2: Convert to fraction form
    622,709.25/934,064.78 = 173,431.41/x
  3. Step 3: Cross multiply
    622,709.25x = 934,064.78 × 173,431.41
  4. Step 4: Simplify right side
    622,709.25x = 161,996,166,289.26
  5. Step 5: Solve for x
    x = 161,996,166,289.26/622,709.25
  6. Step 6: Final answer
    x = 260,147.36

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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.