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Finding the Fourth Proportional to 375,257.39, 517,933.38 and 344,994.78

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Solution

The fourth proportional to 375,257.39, 517,933.38 and 344,994.78 is: 476,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,257.39 : 517,933.38 = 344,994.78 : x
  2. Step 2: Convert to fraction form
    375,257.39/517,933.38 = 344,994.78/x
  3. Step 3: Cross multiply
    375,257.39x = 517,933.38 × 344,994.78
  4. Step 4: Simplify right side
    375,257.39x = 178,684,312,487.76
  5. Step 5: Solve for x
    x = 178,684,312,487.76/375,257.39
  6. Step 6: Final answer
    x = 476,164.68

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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.