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Finding the Fourth Proportional to 541,936.80, 812,930.80 and 168,221.60

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Solution

The fourth proportional to 541,936.80, 812,930.80 and 168,221.60 is: 252,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,936.80 : 812,930.80 = 168,221.60 : x
  2. Step 2: Convert to fraction form
    541,936.80/812,930.80 = 168,221.60/x
  3. Step 3: Cross multiply
    541,936.80x = 812,930.80 × 168,221.60
  4. Step 4: Simplify right side
    541,936.80x = 136,752,519,865.28
  5. Step 5: Solve for x
    x = 136,752,519,865.28/541,936.80
  6. Step 6: Final answer
    x = 252,340.35

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1.5x scale

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.