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Finding the Fourth Proportional to 813,694.40, 1,122,924.84 and 451,152

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Solution

The fourth proportional to 813,694.40, 1,122,924.84 and 451,152 is: 622,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,694.40 : 1,122,924.84 = 451,152 : x
  2. Step 2: Convert to fraction form
    813,694.40/1,122,924.84 = 451,152/x
  3. Step 3: Cross multiply
    813,694.40x = 1,122,924.84 × 451,152
  4. Step 4: Simplify right side
    813,694.40x = 506,609,787,415.68
  5. Step 5: Solve for x
    x = 506,609,787,415.68/813,694.40
  6. Step 6: Final answer
    x = 622,604.49

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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.