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Finding the Fourth Proportional to 543,816.60, 814,112.10 and 404,194.20

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Solution

The fourth proportional to 543,816.60, 814,112.10 and 404,194.20 is: 605,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,816.60 : 814,112.10 = 404,194.20 : x
  2. Step 2: Convert to fraction form
    543,816.60/814,112.10 = 404,194.20/x
  3. Step 3: Cross multiply
    543,816.60x = 814,112.10 × 404,194.20
  4. Step 4: Simplify right side
    543,816.60x = 329,059,388,969.82
  5. Step 5: Solve for x
    x = 329,059,388,969.82/543,816.60
  6. Step 6: Final answer
    x = 605,092.58

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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.