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Finding the Fourth Proportional to 543,080.52, 749,390.28 and 301,373.28

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Solution

The fourth proportional to 543,080.52, 749,390.28 and 301,373.28 is: 415,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,080.52 : 749,390.28 = 301,373.28 : x
  2. Step 2: Convert to fraction form
    543,080.52/749,390.28 = 301,373.28/x
  3. Step 3: Cross multiply
    543,080.52x = 749,390.28 × 301,373.28
  4. Step 4: Simplify right side
    543,080.52x = 225,846,206,683.72
  5. Step 5: Solve for x
    x = 225,846,206,683.72/543,080.52
  6. Step 6: Final answer
    x = 415,861.37

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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.