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Finding the Fourth Proportional to 547,125.66, 755,046.18 and 343,185.21

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Solution

The fourth proportional to 547,125.66, 755,046.18 and 343,185.21 is: 473,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,125.66 : 755,046.18 = 343,185.21 : x
  2. Step 2: Convert to fraction form
    547,125.66/755,046.18 = 343,185.21/x
  3. Step 3: Cross multiply
    547,125.66x = 755,046.18 × 343,185.21
  4. Step 4: Simplify right side
    547,125.66x = 259,120,681,843.00
  5. Step 5: Solve for x
    x = 259,120,681,843.00/547,125.66
  6. Step 6: Final answer
    x = 473,603.60

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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.