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Finding the Fourth Proportional to 681,207.06, 940,094.79 and 379,401.06

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Solution

The fourth proportional to 681,207.06, 940,094.79 and 379,401.06 is: 523,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,207.06 : 940,094.79 = 379,401.06 : x
  2. Step 2: Convert to fraction form
    681,207.06/940,094.79 = 379,401.06/x
  3. Step 3: Cross multiply
    681,207.06x = 940,094.79 × 379,401.06
  4. Step 4: Simplify right side
    681,207.06x = 356,672,959,826.48
  5. Step 5: Solve for x
    x = 356,672,959,826.48/681,207.06
  6. Step 6: Final answer
    x = 523,589.64

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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.