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Finding the Fourth Proportional to 367,641.70, 551,462.55 and 274,329.70

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Solution

The fourth proportional to 367,641.70, 551,462.55 and 274,329.70 is: 411,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,641.70 : 551,462.55 = 274,329.70 : x
  2. Step 2: Convert to fraction form
    367,641.70/551,462.55 = 274,329.70/x
  3. Step 3: Cross multiply
    367,641.70x = 551,462.55 × 274,329.70
  4. Step 4: Simplify right side
    367,641.70x = 151,282,555,902.74
  5. Step 5: Solve for x
    x = 151,282,555,902.74/367,641.70
  6. Step 6: Final answer
    x = 411,494.55

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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.