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Finding the Fourth Proportional to 543,558.06, 749,989.26 and 328,693.68

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Solution

The fourth proportional to 543,558.06, 749,989.26 and 328,693.68 is: 453,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,558.06 : 749,989.26 = 328,693.68 : x
  2. Step 2: Convert to fraction form
    543,558.06/749,989.26 = 328,693.68/x
  3. Step 3: Cross multiply
    543,558.06x = 749,989.26 × 328,693.68
  4. Step 4: Simplify right side
    543,558.06x = 246,516,729,829.88
  5. Step 5: Solve for x
    x = 246,516,729,829.88/543,558.06
  6. Step 6: Final answer
    x = 453,524.19

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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.