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Finding the Fourth Proportional to 577,441.44, 866,152.61 and 172,634.58

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Solution

The fourth proportional to 577,441.44, 866,152.61 and 172,634.58 is: 258,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,441.44 : 866,152.61 = 172,634.58 : x
  2. Step 2: Convert to fraction form
    577,441.44/866,152.61 = 172,634.58/x
  3. Step 3: Cross multiply
    577,441.44x = 866,152.61 × 172,634.58
  4. Step 4: Simplify right side
    577,441.44x = 149,527,892,043.25
  5. Step 5: Solve for x
    x = 149,527,892,043.25/577,441.44
  6. Step 6: Final answer
    x = 258,949.01

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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.