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Finding the Fourth Proportional to 580,588.84, 870,938.34 and 225,630.28

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Solution

The fourth proportional to 580,588.84, 870,938.34 and 225,630.28 is: 338,466.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,588.84 : 870,938.34 = 225,630.28 : x
  2. Step 2: Convert to fraction form
    580,588.84/870,938.34 = 225,630.28/x
  3. Step 3: Cross multiply
    580,588.84x = 870,938.34 × 225,630.28
  4. Step 4: Simplify right side
    580,588.84x = 196,510,061,516.94
  5. Step 5: Solve for x
    x = 196,510,061,516.94/580,588.84
  6. Step 6: Final answer
    x = 338,466.83

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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.