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Finding the Fourth Proportional to 436,235.40, 653,867.10 and 169,907.40

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Solution

The fourth proportional to 436,235.40, 653,867.10 and 169,907.40 is: 254,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,235.40 : 653,867.10 = 169,907.40 : x
  2. Step 2: Convert to fraction form
    436,235.40/653,867.10 = 169,907.40/x
  3. Step 3: Cross multiply
    436,235.40x = 653,867.10 × 169,907.40
  4. Step 4: Simplify right side
    436,235.40x = 111,096,858,906.54
  5. Step 5: Solve for x
    x = 111,096,858,906.54/436,235.40
  6. Step 6: Final answer
    x = 254,671.81

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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.