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Finding the Fourth Proportional to 466,365.06, 643,604.54 and 275,379.21

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Solution

The fourth proportional to 466,365.06, 643,604.54 and 275,379.21 is: 380,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,365.06 : 643,604.54 = 275,379.21 : x
  2. Step 2: Convert to fraction form
    466,365.06/643,604.54 = 275,379.21/x
  3. Step 3: Cross multiply
    466,365.06x = 643,604.54 × 275,379.21
  4. Step 4: Simplify right side
    466,365.06x = 177,235,308,400.72
  5. Step 5: Solve for x
    x = 177,235,308,400.72/466,365.06
  6. Step 6: Final answer
    x = 380,035.56

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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.