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Finding the Fourth Proportional to 609,263.32, 840,876.24 and 379,857.84

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Solution

The fourth proportional to 609,263.32, 840,876.24 and 379,857.84 is: 524,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,263.32 : 840,876.24 = 379,857.84 : x
  2. Step 2: Convert to fraction form
    609,263.32/840,876.24 = 379,857.84/x
  3. Step 3: Cross multiply
    609,263.32x = 840,876.24 × 379,857.84
  4. Step 4: Simplify right side
    609,263.32x = 319,413,432,233.72
  5. Step 5: Solve for x
    x = 319,413,432,233.72/609,263.32
  6. Step 6: Final answer
    x = 524,261.71

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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.