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Finding the Fourth Proportional to 467,853.30, 700,795.80 and 389,121.30

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Solution

The fourth proportional to 467,853.30, 700,795.80 and 389,121.30 is: 582,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,853.30 : 700,795.80 = 389,121.30 : x
  2. Step 2: Convert to fraction form
    467,853.30/700,795.80 = 389,121.30/x
  3. Step 3: Cross multiply
    467,853.30x = 700,795.80 × 389,121.30
  4. Step 4: Simplify right side
    467,853.30x = 272,694,572,730.54
  5. Step 5: Solve for x
    x = 272,694,572,730.54/467,853.30
  6. Step 6: Final answer
    x = 582,863.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.