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Finding the Fourth Proportional to 702,630.23, 969,573.24 and 396,781.02

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Solution

The fourth proportional to 702,630.23, 969,573.24 and 396,781.02 is: 547,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,630.23 : 969,573.24 = 396,781.02 : x
  2. Step 2: Convert to fraction form
    702,630.23/969,573.24 = 396,781.02/x
  3. Step 3: Cross multiply
    702,630.23x = 969,573.24 × 396,781.02
  4. Step 4: Simplify right side
    702,630.23x = 384,708,253,292.09
  5. Step 5: Solve for x
    x = 384,708,253,292.09/702,630.23
  6. Step 6: Final answer
    x = 547,525.91

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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.