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Finding the Fourth Proportional to 385,093.20, 577,553.40 and 252,901.20

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Solution

The fourth proportional to 385,093.20, 577,553.40 and 252,901.20 is: 379,295.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,093.20 : 577,553.40 = 252,901.20 : x
  2. Step 2: Convert to fraction form
    385,093.20/577,553.40 = 252,901.20/x
  3. Step 3: Cross multiply
    385,093.20x = 577,553.40 × 252,901.20
  4. Step 4: Simplify right side
    385,093.20x = 146,063,947,924.08
  5. Step 5: Solve for x
    x = 146,063,947,924.08/385,093.20
  6. Step 6: Final answer
    x = 379,295.06

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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.