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Finding the Fourth Proportional to 580,576.55, 870,919.79 and 225,617.94

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Solution

The fourth proportional to 580,576.55, 870,919.79 and 225,617.94 is: 338,448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,576.55 : 870,919.79 = 225,617.94 : x
  2. Step 2: Convert to fraction form
    580,576.55/870,919.79 = 225,617.94/x
  3. Step 3: Cross multiply
    580,576.55x = 870,919.79 × 225,617.94
  4. Step 4: Simplify right side
    580,576.55x = 196,495,127,796.94
  5. Step 5: Solve for x
    x = 196,495,127,796.94/580,576.55
  6. Step 6: Final answer
    x = 338,448.27

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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.