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Finding the Fourth Proportional to 502,298.88, 693,172.72 and 275,958.96

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Solution

The fourth proportional to 502,298.88, 693,172.72 and 275,958.96 is: 380,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,298.88 : 693,172.72 = 275,958.96 : x
  2. Step 2: Convert to fraction form
    502,298.88/693,172.72 = 275,958.96/x
  3. Step 3: Cross multiply
    502,298.88x = 693,172.72 × 275,958.96
  4. Step 4: Simplify right side
    502,298.88x = 191,287,222,911.57
  5. Step 5: Solve for x
    x = 191,287,222,911.57/502,298.88
  6. Step 6: Final answer
    x = 380,823.51

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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.