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Finding the Fourth Proportional to 325,336.92, 487,156.56 and 261,810.04

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Solution

The fourth proportional to 325,336.92, 487,156.56 and 261,810.04 is: 392,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,336.92 : 487,156.56 = 261,810.04 : x
  2. Step 2: Convert to fraction form
    325,336.92/487,156.56 = 261,810.04/x
  3. Step 3: Cross multiply
    325,336.92x = 487,156.56 × 261,810.04
  4. Step 4: Simplify right side
    325,336.92x = 127,542,478,293.24
  5. Step 5: Solve for x
    x = 127,542,478,293.24/325,336.92
  6. Step 6: Final answer
    x = 392,031.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.