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Finding the Fourth Proportional to 468,654.78, 646,742.30 and 253,794.79

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Solution

The fourth proportional to 468,654.78, 646,742.30 and 253,794.79 is: 350,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,654.78 : 646,742.30 = 253,794.79 : x
  2. Step 2: Convert to fraction form
    468,654.78/646,742.30 = 253,794.79/x
  3. Step 3: Cross multiply
    468,654.78x = 646,742.30 × 253,794.79
  4. Step 4: Simplify right side
    468,654.78x = 164,139,826,212.62
  5. Step 5: Solve for x
    x = 164,139,826,212.62/468,654.78
  6. Step 6: Final answer
    x = 350,236.11

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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.