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Finding the Fourth Proportional to 451,277.13, 622,770.45 and 247,314.48

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Solution

The fourth proportional to 451,277.13, 622,770.45 and 247,314.48 is: 341,298.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,277.13 : 622,770.45 = 247,314.48 : x
  2. Step 2: Convert to fraction form
    451,277.13/622,770.45 = 247,314.48/x
  3. Step 3: Cross multiply
    451,277.13x = 622,770.45 × 247,314.48
  4. Step 4: Simplify right side
    451,277.13x = 154,020,150,001.12
  5. Step 5: Solve for x
    x = 154,020,150,001.12/451,277.13
  6. Step 6: Final answer
    x = 341,298.37

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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.