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Finding the Fourth Proportional to 681,173.25, 940,048.25 and 379,367.25

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Solution

The fourth proportional to 681,173.25, 940,048.25 and 379,367.25 is: 523,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,173.25 : 940,048.25 = 379,367.25 : x
  2. Step 2: Convert to fraction form
    681,173.25/940,048.25 = 379,367.25/x
  3. Step 3: Cross multiply
    681,173.25x = 940,048.25 × 379,367.25
  4. Step 4: Simplify right side
    681,173.25x = 356,623,517,572.98
  5. Step 5: Solve for x
    x = 356,623,517,572.98/681,173.25
  6. Step 6: Final answer
    x = 523,543.05

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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.