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Finding the Fourth Proportional to 392,496.76, 541,503.80 and 222,632.48

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Solution

The fourth proportional to 392,496.76, 541,503.80 and 222,632.48 is: 307,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,496.76 : 541,503.80 = 222,632.48 : x
  2. Step 2: Convert to fraction form
    392,496.76/541,503.80 = 222,632.48/x
  3. Step 3: Cross multiply
    392,496.76x = 541,503.80 × 222,632.48
  4. Step 4: Simplify right side
    392,496.76x = 120,556,333,923.42
  5. Step 5: Solve for x
    x = 120,556,333,923.42/392,496.76
  6. Step 6: Final answer
    x = 307,152.43

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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.