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Finding the Fourth Proportional to 447,512.33, 671,290.62 and 127,711.33

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Solution

The fourth proportional to 447,512.33, 671,290.62 and 127,711.33 is: 191,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,512.33 : 671,290.62 = 127,711.33 : x
  2. Step 2: Convert to fraction form
    447,512.33/671,290.62 = 127,711.33/x
  3. Step 3: Cross multiply
    447,512.33x = 671,290.62 × 127,711.33
  4. Step 4: Simplify right side
    447,512.33x = 85,731,419,994.51
  5. Step 5: Solve for x
    x = 85,731,419,994.51/447,512.33
  6. Step 6: Final answer
    x = 191,573.31

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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.