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Finding the Fourth Proportional to 580,359.62, 870,742.53 and 225,622.55

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Solution

The fourth proportional to 580,359.62, 870,742.53 and 225,622.55 is: 338,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,359.62 : 870,742.53 = 225,622.55 : x
  2. Step 2: Convert to fraction form
    580,359.62/870,742.53 = 225,622.55/x
  3. Step 3: Cross multiply
    580,359.62x = 870,742.53 × 225,622.55
  4. Step 4: Simplify right side
    580,359.62x = 196,459,145,658.34
  5. Step 5: Solve for x
    x = 196,459,145,658.34/580,359.62
  6. Step 6: Final answer
    x = 338,512.78

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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.