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Finding the Fourth Proportional to 311,496.60, 467,072.10 and 133,973.40

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Solution

The fourth proportional to 311,496.60, 467,072.10 and 133,973.40 is: 200,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,496.60 : 467,072.10 = 133,973.40 : x
  2. Step 2: Convert to fraction form
    311,496.60/467,072.10 = 133,973.40/x
  3. Step 3: Cross multiply
    311,496.60x = 467,072.10 × 133,973.40
  4. Step 4: Simplify right side
    311,496.60x = 62,575,237,282.14
  5. Step 5: Solve for x
    x = 62,575,237,282.14/311,496.60
  6. Step 6: Final answer
    x = 200,885.78

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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.