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Finding the Fourth Proportional to 702,013.26, 968,694.87 and 396,071.76

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Solution

The fourth proportional to 702,013.26, 968,694.87 and 396,071.76 is: 546,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,013.26 : 968,694.87 = 396,071.76 : x
  2. Step 2: Convert to fraction form
    702,013.26/968,694.87 = 396,071.76/x
  3. Step 3: Cross multiply
    702,013.26x = 968,694.87 × 396,071.76
  4. Step 4: Simplify right side
    702,013.26x = 383,672,682,063.87
  5. Step 5: Solve for x
    x = 383,672,682,063.87/702,013.26
  6. Step 6: Final answer
    x = 546,531.96

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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.