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Finding the Fourth Proportional to 386,034.44, 532,700.64 and 213,950.72

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Solution

The fourth proportional to 386,034.44, 532,700.64 and 213,950.72 is: 295,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,034.44 : 532,700.64 = 213,950.72 : x
  2. Step 2: Convert to fraction form
    386,034.44/532,700.64 = 213,950.72/x
  3. Step 3: Cross multiply
    386,034.44x = 532,700.64 × 213,950.72
  4. Step 4: Simplify right side
    386,034.44x = 113,971,685,472.46
  5. Step 5: Solve for x
    x = 113,971,685,472.46/386,034.44
  6. Step 6: Final answer
    x = 295,237.09

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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.