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Finding the Fourth Proportional to 467,228.45, 644,761.82 and 263,275.72

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Solution

The fourth proportional to 467,228.45, 644,761.82 and 263,275.72 is: 363,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,228.45 : 644,761.82 = 263,275.72 : x
  2. Step 2: Convert to fraction form
    467,228.45/644,761.82 = 263,275.72/x
  3. Step 3: Cross multiply
    467,228.45x = 644,761.82 × 263,275.72
  4. Step 4: Simplify right side
    467,228.45x = 169,750,131,435.30
  5. Step 5: Solve for x
    x = 169,750,131,435.30/467,228.45
  6. Step 6: Final answer
    x = 363,312.92

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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.