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Finding the Fourth Proportional to 647,223.75, 893,172.87 and 360,761.94

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Solution

The fourth proportional to 647,223.75, 893,172.87 and 360,761.94 is: 497,853.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,223.75 : 893,172.87 = 360,761.94 : x
  2. Step 2: Convert to fraction form
    647,223.75/893,172.87 = 360,761.94/x
  3. Step 3: Cross multiply
    647,223.75x = 893,172.87 × 360,761.94
  4. Step 4: Simplify right side
    647,223.75x = 322,222,777,336.57
  5. Step 5: Solve for x
    x = 322,222,777,336.57/647,223.75
  6. Step 6: Final answer
    x = 497,853.76

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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.