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Finding the Fourth Proportional to 499,595.75, 689,442.15 and 273,241.25

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Solution

The fourth proportional to 499,595.75, 689,442.15 and 273,241.25 is: 377,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,595.75 : 689,442.15 = 273,241.25 : x
  2. Step 2: Convert to fraction form
    499,595.75/689,442.15 = 273,241.25/x
  3. Step 3: Cross multiply
    499,595.75x = 689,442.15 × 273,241.25
  4. Step 4: Simplify right side
    499,595.75x = 188,384,034,868.69
  5. Step 5: Solve for x
    x = 188,384,034,868.69/499,595.75
  6. Step 6: Final answer
    x = 377,072.93

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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.