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Finding the Fourth Proportional to 485,114.80, 727,672.20 and 367,016.80

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Solution

The fourth proportional to 485,114.80, 727,672.20 and 367,016.80 is: 550,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,114.80 : 727,672.20 = 367,016.80 : x
  2. Step 2: Convert to fraction form
    485,114.80/727,672.20 = 367,016.80/x
  3. Step 3: Cross multiply
    485,114.80x = 727,672.20 × 367,016.80
  4. Step 4: Simplify right side
    485,114.80x = 267,067,922,292.96
  5. Step 5: Solve for x
    x = 267,067,922,292.96/485,114.80
  6. Step 6: Final answer
    x = 550,525.20

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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.