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Finding the Fourth Proportional to 577,441.56, 866,152.79 and 172,634.70

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Solution

The fourth proportional to 577,441.56, 866,152.79 and 172,634.70 is: 258,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,441.56 : 866,152.79 = 172,634.70 : x
  2. Step 2: Convert to fraction form
    577,441.56/866,152.79 = 172,634.70/x
  3. Step 3: Cross multiply
    577,441.56x = 866,152.79 × 172,634.70
  4. Step 4: Simplify right side
    577,441.56x = 149,528,030,088.09
  5. Step 5: Solve for x
    x = 149,528,030,088.09/577,441.56
  6. Step 6: Final answer
    x = 258,949.20

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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.