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Finding the Fourth Proportional to 681,299.46, 940,184.56 and 371,214.97

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Solution

The fourth proportional to 681,299.46, 940,184.56 and 371,214.97 is: 512,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,299.46 : 940,184.56 = 371,214.97 : x
  2. Step 2: Convert to fraction form
    681,299.46/940,184.56 = 371,214.97/x
  3. Step 3: Cross multiply
    681,299.46x = 940,184.56 × 371,214.97
  4. Step 4: Simplify right side
    681,299.46x = 349,010,579,956.36
  5. Step 5: Solve for x
    x = 349,010,579,956.36/681,299.46
  6. Step 6: Final answer
    x = 512,271.92

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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.