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Finding the Fourth Proportional to 468,067.11, 645,930.66 and 253,206.64

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Solution

The fourth proportional to 468,067.11, 645,930.66 and 253,206.64 is: 349,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,067.11 : 645,930.66 = 253,206.64 : x
  2. Step 2: Convert to fraction form
    468,067.11/645,930.66 = 253,206.64/x
  3. Step 3: Cross multiply
    468,067.11x = 645,930.66 × 253,206.64
  4. Step 4: Simplify right side
    468,067.11x = 163,553,930,825.55
  5. Step 5: Solve for x
    x = 163,553,930,825.55/468,067.11
  6. Step 6: Final answer
    x = 349,424.10

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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.