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Finding the Fourth Proportional to 368,014.20, 551,438.10 and 273,535.80

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Solution

The fourth proportional to 368,014.20, 551,438.10 and 273,535.80 is: 409,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,014.20 : 551,438.10 = 273,535.80 : x
  2. Step 2: Convert to fraction form
    368,014.20/551,438.10 = 273,535.80/x
  3. Step 3: Cross multiply
    368,014.20x = 551,438.10 × 273,535.80
  4. Step 4: Simplify right side
    368,014.20x = 150,838,061,833.98
  5. Step 5: Solve for x
    x = 150,838,061,833.98/368,014.20
  6. Step 6: Final answer
    x = 409,870.22

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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.