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Finding the Fourth Proportional to 681,296.49, 940,180.47 and 371,212.00

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Solution

The fourth proportional to 681,296.49, 940,180.47 and 371,212.00 is: 512,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,296.49 : 940,180.47 = 371,212.00 : x
  2. Step 2: Convert to fraction form
    681,296.49/940,180.47 = 371,212.00/x
  3. Step 3: Cross multiply
    681,296.49x = 940,180.47 × 371,212.00
  4. Step 4: Simplify right side
    681,296.49x = 349,006,276,263.73
  5. Step 5: Solve for x
    x = 349,006,276,263.73/681,296.49
  6. Step 6: Final answer
    x = 512,267.83

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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.