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Finding the Fourth Proportional to 681,597.96, 940,818.24 and 439,881

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Solution

The fourth proportional to 681,597.96, 940,818.24 and 439,881 is: 607,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,597.96 : 940,818.24 = 439,881 : x
  2. Step 2: Convert to fraction form
    681,597.96/940,818.24 = 439,881/x
  3. Step 3: Cross multiply
    681,597.96x = 940,818.24 × 439,881
  4. Step 4: Simplify right side
    681,597.96x = 413,848,068,229.44
  5. Step 5: Solve for x
    x = 413,848,068,229.44/681,597.96
  6. Step 6: Final answer
    x = 607,173.28

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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.