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Finding the Fourth Proportional to 316,227.25, 436,323.61 and 193,745.49

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Solution

The fourth proportional to 316,227.25, 436,323.61 and 193,745.49 is: 267,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,227.25 : 436,323.61 = 193,745.49 : x
  2. Step 2: Convert to fraction form
    316,227.25/436,323.61 = 193,745.49/x
  3. Step 3: Cross multiply
    316,227.25x = 436,323.61 × 193,745.49
  4. Step 4: Simplify right side
    316,227.25x = 84,535,731,618.02
  5. Step 5: Solve for x
    x = 84,535,731,618.02/316,227.25
  6. Step 6: Final answer
    x = 267,325.89

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1.5x scale

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.