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Finding the Fourth Proportional to 316,353.38, 436,576.23 and 193,843.63

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Solution

The fourth proportional to 316,353.38, 436,576.23 and 193,843.63 is: 267,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,353.38 : 436,576.23 = 193,843.63 : x
  2. Step 2: Convert to fraction form
    316,353.38/436,576.23 = 193,843.63/x
  3. Step 3: Cross multiply
    316,353.38x = 436,576.23 × 193,843.63
  4. Step 4: Simplify right side
    316,353.38x = 84,627,521,740.64
  5. Step 5: Solve for x
    x = 84,627,521,740.64/316,353.38
  6. Step 6: Final answer
    x = 267,509.46

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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.