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Finding the Fourth Proportional to 502,220.62, 693,069.24 and 275,866.12

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Solution

The fourth proportional to 502,220.62, 693,069.24 and 275,866.12 is: 380,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,220.62 : 693,069.24 = 275,866.12 : x
  2. Step 2: Convert to fraction form
    502,220.62/693,069.24 = 275,866.12/x
  3. Step 3: Cross multiply
    502,220.62x = 693,069.24 × 275,866.12
  4. Step 4: Simplify right side
    502,220.62x = 191,194,322,130.15
  5. Step 5: Solve for x
    x = 191,194,322,130.15/502,220.62
  6. Step 6: Final answer
    x = 380,697.87

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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.