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Finding the Fourth Proportional to 451,809.60, 676,936.80 and 293,956.80

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Solution

The fourth proportional to 451,809.60, 676,936.80 and 293,956.80 is: 440,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,809.60 : 676,936.80 = 293,956.80 : x
  2. Step 2: Convert to fraction form
    451,809.60/676,936.80 = 293,956.80/x
  3. Step 3: Cross multiply
    451,809.60x = 676,936.80 × 293,956.80
  4. Step 4: Simplify right side
    451,809.60x = 198,990,175,530.24
  5. Step 5: Solve for x
    x = 198,990,175,530.24/451,809.60
  6. Step 6: Final answer
    x = 440,429.28

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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.