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Finding the Fourth Proportional to 681,196.44, 940,080.30 and 379,390.44

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Solution

The fourth proportional to 681,196.44, 940,080.30 and 379,390.44 is: 523,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,196.44 : 940,080.30 = 379,390.44 : x
  2. Step 2: Convert to fraction form
    681,196.44/940,080.30 = 379,390.44/x
  3. Step 3: Cross multiply
    681,196.44x = 940,080.30 × 379,390.44
  4. Step 4: Simplify right side
    681,196.44x = 356,657,478,652.33
  5. Step 5: Solve for x
    x = 356,657,478,652.33/681,196.44
  6. Step 6: Final answer
    x = 523,575.08

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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.