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Finding the Fourth Proportional to 668,653, 922,757.34 and 366,847

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Solution

The fourth proportional to 668,653, 922,757.34 and 366,847 is: 506,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,653 : 922,757.34 = 366,847 : x
  2. Step 2: Convert to fraction form
    668,653/922,757.34 = 366,847/x
  3. Step 3: Cross multiply
    668,653x = 922,757.34 × 366,847
  4. Step 4: Simplify right side
    668,653x = 338,510,761,906.98
  5. Step 5: Solve for x
    x = 338,510,761,906.98/668,653
  6. Step 6: Final answer
    x = 506,257.75

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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.