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Finding the Fourth Proportional to 469,249.36, 647,411.88 and 265,280.56

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Solution

The fourth proportional to 469,249.36, 647,411.88 and 265,280.56 is: 366,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,249.36 : 647,411.88 = 265,280.56 : x
  2. Step 2: Convert to fraction form
    469,249.36/647,411.88 = 265,280.56/x
  3. Step 3: Cross multiply
    469,249.36x = 647,411.88 × 265,280.56
  4. Step 4: Simplify right side
    469,249.36x = 171,745,786,077.05
  5. Step 5: Solve for x
    x = 171,745,786,077.05/469,249.36
  6. Step 6: Final answer
    x = 366,001.11

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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.