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Finding the Fourth Proportional to 336,818.64, 505,591.92 and 299,616.96

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Solution

The fourth proportional to 336,818.64, 505,591.92 and 299,616.96 is: 449,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,818.64 : 505,591.92 = 299,616.96 : x
  2. Step 2: Convert to fraction form
    336,818.64/505,591.92 = 299,616.96/x
  3. Step 3: Cross multiply
    336,818.64x = 505,591.92 × 299,616.96
  4. Step 4: Simplify right side
    336,818.64x = 151,483,914,070.96
  5. Step 5: Solve for x
    x = 151,483,914,070.96/336,818.64
  6. Step 6: Final answer
    x = 449,749.20

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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.