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Finding the Fourth Proportional to 374,694.88, 517,066.13 and 213,601.85

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Solution

The fourth proportional to 374,694.88, 517,066.13 and 213,601.85 is: 294,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,694.88 : 517,066.13 = 213,601.85 : x
  2. Step 2: Convert to fraction form
    374,694.88/517,066.13 = 213,601.85/x
  3. Step 3: Cross multiply
    374,694.88x = 517,066.13 × 213,601.85
  4. Step 4: Simplify right side
    374,694.88x = 110,446,281,940.34
  5. Step 5: Solve for x
    x = 110,446,281,940.34/374,694.88
  6. Step 6: Final answer
    x = 294,763.25

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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.