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Finding the Fourth Proportional to 468,469.21, 646,487.73 and 253,609.27

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Solution

The fourth proportional to 468,469.21, 646,487.73 and 253,609.27 is: 349,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,469.21 : 646,487.73 = 253,609.27 : x
  2. Step 2: Convert to fraction form
    468,469.21/646,487.73 = 253,609.27/x
  3. Step 3: Cross multiply
    468,469.21x = 646,487.73 × 253,609.27
  4. Step 4: Simplify right side
    468,469.21x = 163,955,280,001.21
  5. Step 5: Solve for x
    x = 163,955,280,001.21/468,469.21
  6. Step 6: Final answer
    x = 349,980.91

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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.