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Finding the Fourth Proportional to 385,896.76, 532,722.63 and 271,273.66

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Solution

The fourth proportional to 385,896.76, 532,722.63 and 271,273.66 is: 374,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,896.76 : 532,722.63 = 271,273.66 : x
  2. Step 2: Convert to fraction form
    385,896.76/532,722.63 = 271,273.66/x
  3. Step 3: Cross multiply
    385,896.76x = 532,722.63 × 271,273.66
  4. Step 4: Simplify right side
    385,896.76x = 144,513,617,604.93
  5. Step 5: Solve for x
    x = 144,513,617,604.93/385,896.76
  6. Step 6: Final answer
    x = 374,487.77

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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.