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Finding the Fourth Proportional to 379,611.72, 569,620.80 and 246,460.68

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Solution

The fourth proportional to 379,611.72, 569,620.80 and 246,460.68 is: 369,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,611.72 : 569,620.80 = 246,460.68 : x
  2. Step 2: Convert to fraction form
    379,611.72/569,620.80 = 246,460.68/x
  3. Step 3: Cross multiply
    379,611.72x = 569,620.80 × 246,460.68
  4. Step 4: Simplify right side
    379,611.72x = 140,389,129,710.14
  5. Step 5: Solve for x
    x = 140,389,129,710.14/379,611.72
  6. Step 6: Final answer
    x = 369,822.96

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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.