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Finding the Fourth Proportional to 580,535.25, 870,857.91 and 225,576.69

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Solution

The fourth proportional to 580,535.25, 870,857.91 and 225,576.69 is: 338,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,535.25 : 870,857.91 = 225,576.69 : x
  2. Step 2: Convert to fraction form
    580,535.25/870,857.91 = 225,576.69/x
  3. Step 3: Cross multiply
    580,535.25x = 870,857.91 × 225,576.69
  4. Step 4: Simplify right side
    580,535.25x = 196,445,244,798.12
  5. Step 5: Solve for x
    x = 196,445,244,798.12/580,535.25
  6. Step 6: Final answer
    x = 338,386.42

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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.