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Finding the Fourth Proportional to 450,988.69, 622,342.28 and 247,040.52

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Solution

The fourth proportional to 450,988.69, 622,342.28 and 247,040.52 is: 340,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,988.69 : 622,342.28 = 247,040.52 : x
  2. Step 2: Convert to fraction form
    450,988.69/622,342.28 = 247,040.52/x
  3. Step 3: Cross multiply
    450,988.69x = 622,342.28 × 247,040.52
  4. Step 4: Simplify right side
    450,988.69x = 153,743,758,993.49
  5. Step 5: Solve for x
    x = 153,743,758,993.49/450,988.69
  6. Step 6: Final answer
    x = 340,903.80

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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.