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Finding the Fourth Proportional to 469,987.52, 705,247.91 and 253,843.58

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Solution

The fourth proportional to 469,987.52, 705,247.91 and 253,843.58 is: 380,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,987.52 : 705,247.91 = 253,843.58 : x
  2. Step 2: Convert to fraction form
    469,987.52/705,247.91 = 253,843.58/x
  3. Step 3: Cross multiply
    469,987.52x = 705,247.91 × 253,843.58
  4. Step 4: Simplify right side
    469,987.52x = 179,022,649,466.46
  5. Step 5: Solve for x
    x = 179,022,649,466.46/469,987.52
  6. Step 6: Final answer
    x = 380,909.37

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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.