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Finding the Fourth Proportional to 543,414.78, 749,945.16 and 328,607.64

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Solution

The fourth proportional to 543,414.78, 749,945.16 and 328,607.64 is: 453,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,414.78 : 749,945.16 = 328,607.64 : x
  2. Step 2: Convert to fraction form
    543,414.78/749,945.16 = 328,607.64/x
  3. Step 3: Cross multiply
    543,414.78x = 749,945.16 × 328,607.64
  4. Step 4: Simplify right side
    543,414.78x = 246,437,709,157.02
  5. Step 5: Solve for x
    x = 246,437,709,157.02/543,414.78
  6. Step 6: Final answer
    x = 453,498.36

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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.