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Finding the Fourth Proportional to 681,999.41, 940,994.60 and 440,230.20

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Solution

The fourth proportional to 681,999.41, 940,994.60 and 440,230.20 is: 607,411.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,999.41 : 940,994.60 = 440,230.20 : x
  2. Step 2: Convert to fraction form
    681,999.41/940,994.60 = 440,230.20/x
  3. Step 3: Cross multiply
    681,999.41x = 940,994.60 × 440,230.20
  4. Step 4: Simplify right side
    681,999.41x = 414,254,238,755.77
  5. Step 5: Solve for x
    x = 414,254,238,755.77/681,999.41
  6. Step 6: Final answer
    x = 607,411.44

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Similar ratio
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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.