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Finding the Fourth Proportional to 478,548.64, 717,947.56 and 179,052.64

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Solution

The fourth proportional to 478,548.64, 717,947.56 and 179,052.64 is: 268,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,548.64 : 717,947.56 = 179,052.64 : x
  2. Step 2: Convert to fraction form
    478,548.64/717,947.56 = 179,052.64/x
  3. Step 3: Cross multiply
    478,548.64x = 717,947.56 × 179,052.64
  4. Step 4: Simplify right side
    478,548.64x = 128,550,405,999.56
  5. Step 5: Solve for x
    x = 128,550,405,999.56/478,548.64
  6. Step 6: Final answer
    x = 268,625.58

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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.