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Finding the Fourth Proportional to 681,239.16, 940,110.30 and 394,925.22

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Solution

The fourth proportional to 681,239.16, 940,110.30 and 394,925.22 is: 544,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,239.16 : 940,110.30 = 394,925.22 : x
  2. Step 2: Convert to fraction form
    681,239.16/940,110.30 = 394,925.22/x
  3. Step 3: Cross multiply
    681,239.16x = 940,110.30 × 394,925.22
  4. Step 4: Simplify right side
    681,239.16x = 371,273,267,051.77
  5. Step 5: Solve for x
    x = 371,273,267,051.77/681,239.16
  6. Step 6: Final answer
    x = 544,996.95

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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.