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Finding the Fourth Proportional to 543,094.87, 749,459.55 and 301,375.48

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Solution

The fourth proportional to 543,094.87, 749,459.55 and 301,375.48 is: 415,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,094.87 : 749,459.55 = 301,375.48 : x
  2. Step 2: Convert to fraction form
    543,094.87/749,459.55 = 301,375.48/x
  3. Step 3: Cross multiply
    543,094.87x = 749,459.55 × 301,375.48
  4. Step 4: Simplify right side
    543,094.87x = 225,868,731,621.83
  5. Step 5: Solve for x
    x = 225,868,731,621.83/543,094.87
  6. Step 6: Final answer
    x = 415,891.85

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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.