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Finding the Fourth Proportional to 322,615.49, 445,220.81 and 177,432.50

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Solution

The fourth proportional to 322,615.49, 445,220.81 and 177,432.50 is: 244,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,615.49 : 445,220.81 = 177,432.50 : x
  2. Step 2: Convert to fraction form
    322,615.49/445,220.81 = 177,432.50/x
  3. Step 3: Cross multiply
    322,615.49x = 445,220.81 × 177,432.50
  4. Step 4: Simplify right side
    322,615.49x = 78,996,641,370.33
  5. Step 5: Solve for x
    x = 78,996,641,370.33/322,615.49
  6. Step 6: Final answer
    x = 244,863.14

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1.5x scale

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.