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Finding the Fourth Proportional to 576,531.96, 864,709.20 and 192,287.58

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Solution

The fourth proportional to 576,531.96, 864,709.20 and 192,287.58 is: 288,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,531.96 : 864,709.20 = 192,287.58 : x
  2. Step 2: Convert to fraction form
    576,531.96/864,709.20 = 192,287.58/x
  3. Step 3: Cross multiply
    576,531.96x = 864,709.20 × 192,287.58
  4. Step 4: Simplify right side
    576,531.96x = 166,272,839,471.74
  5. Step 5: Solve for x
    x = 166,272,839,471.74/576,531.96
  6. Step 6: Final answer
    x = 288,401.77

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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.