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Finding the Fourth Proportional to 468,204.72, 646,120.44 and 253,348.62

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Solution

The fourth proportional to 468,204.72, 646,120.44 and 253,348.62 is: 349,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,204.72 : 646,120.44 = 253,348.62 : x
  2. Step 2: Convert to fraction form
    468,204.72/646,120.44 = 253,348.62/x
  3. Step 3: Cross multiply
    468,204.72x = 646,120.44 × 253,348.62
  4. Step 4: Simplify right side
    468,204.72x = 163,693,721,827.79
  5. Step 5: Solve for x
    x = 163,693,721,827.79/468,204.72
  6. Step 6: Final answer
    x = 349,619.97

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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.