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Finding the Fourth Proportional to 418,584.38, 627,876.60 and 123,096.38

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Solution

The fourth proportional to 418,584.38, 627,876.60 and 123,096.38 is: 184,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,584.38 : 627,876.60 = 123,096.38 : x
  2. Step 2: Convert to fraction form
    418,584.38/627,876.60 = 123,096.38/x
  3. Step 3: Cross multiply
    418,584.38x = 627,876.60 × 123,096.38
  4. Step 4: Simplify right side
    418,584.38x = 77,289,332,945.71
  5. Step 5: Solve for x
    x = 77,289,332,945.71/418,584.38
  6. Step 6: Final answer
    x = 184,644.57

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1.5x scale

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.