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Finding the Fourth Proportional to 375,339.81, 561,597.18 and 263,238.85

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Solution

The fourth proportional to 375,339.81, 561,597.18 and 263,238.85 is: 393,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,339.81 : 561,597.18 = 263,238.85 : x
  2. Step 2: Convert to fraction form
    375,339.81/561,597.18 = 263,238.85/x
  3. Step 3: Cross multiply
    375,339.81x = 561,597.18 × 263,238.85
  4. Step 4: Simplify right side
    375,339.81x = 147,834,195,826.44
  5. Step 5: Solve for x
    x = 147,834,195,826.44/375,339.81
  6. Step 6: Final answer
    x = 393,867.62

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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.