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Finding the Fourth Proportional to 543,170.70, 749,583.78 and 301,468.93

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Solution

The fourth proportional to 543,170.70, 749,583.78 and 301,468.93 is: 416,031.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,170.70 : 749,583.78 = 301,468.93 : x
  2. Step 2: Convert to fraction form
    543,170.70/749,583.78 = 301,468.93/x
  3. Step 3: Cross multiply
    543,170.70x = 749,583.78 × 301,468.93
  4. Step 4: Simplify right side
    543,170.70x = 225,976,220,101.96
  5. Step 5: Solve for x
    x = 225,976,220,101.96/543,170.70
  6. Step 6: Final answer
    x = 416,031.68

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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.