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Finding the Fourth Proportional to 702,217.35, 969,059.59 and 396,357.91

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Solution

The fourth proportional to 702,217.35, 969,059.59 and 396,357.91 is: 546,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,217.35 : 969,059.59 = 396,357.91 : x
  2. Step 2: Convert to fraction form
    702,217.35/969,059.59 = 396,357.91/x
  3. Step 3: Cross multiply
    702,217.35x = 969,059.59 × 396,357.91
  4. Step 4: Simplify right side
    702,217.35x = 384,094,430,344.31
  5. Step 5: Solve for x
    x = 384,094,430,344.31/702,217.35
  6. Step 6: Final answer
    x = 546,973.71

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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.