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Finding the Fourth Proportional to 547,077.51, 755,092.94 and 320,795.91

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Solution

The fourth proportional to 547,077.51, 755,092.94 and 320,795.91 is: 442,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,077.51 : 755,092.94 = 320,795.91 : x
  2. Step 2: Convert to fraction form
    547,077.51/755,092.94 = 320,795.91/x
  3. Step 3: Cross multiply
    547,077.51x = 755,092.94 × 320,795.91
  4. Step 4: Simplify right side
    547,077.51x = 242,230,725,217.90
  5. Step 5: Solve for x
    x = 242,230,725,217.90/547,077.51
  6. Step 6: Final answer
    x = 442,772.22

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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.