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Finding the Fourth Proportional to 385,087.26, 577,632.51 and 252,804.54

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Solution

The fourth proportional to 385,087.26, 577,632.51 and 252,804.54 is: 379,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,087.26 : 577,632.51 = 252,804.54 : x
  2. Step 2: Convert to fraction form
    385,087.26/577,632.51 = 252,804.54/x
  3. Step 3: Cross multiply
    385,087.26x = 577,632.51 × 252,804.54
  4. Step 4: Simplify right side
    385,087.26x = 146,028,120,979.60
  5. Step 5: Solve for x
    x = 146,028,120,979.60/385,087.26
  6. Step 6: Final answer
    x = 379,207.87

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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.