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Finding the Fourth Proportional to 379,290.11, 523,524.66 and 235,964.66

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Solution

The fourth proportional to 379,290.11, 523,524.66 and 235,964.66 is: 325,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,290.11 : 523,524.66 = 235,964.66 : x
  2. Step 2: Convert to fraction form
    379,290.11/523,524.66 = 235,964.66/x
  3. Step 3: Cross multiply
    379,290.11x = 523,524.66 × 235,964.66
  4. Step 4: Simplify right side
    379,290.11x = 123,533,318,398.52
  5. Step 5: Solve for x
    x = 123,533,318,398.52/379,290.11
  6. Step 6: Final answer
    x = 325,696.12

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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.