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Finding the Fourth Proportional to 375,324.56, 561,574.30 and 263,223.60

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Solution

The fourth proportional to 375,324.56, 561,574.30 and 263,223.60 is: 393,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,324.56 : 561,574.30 = 263,223.60 : x
  2. Step 2: Convert to fraction form
    375,324.56/561,574.30 = 263,223.60/x
  3. Step 3: Cross multiply
    375,324.56x = 561,574.30 × 263,223.60
  4. Step 4: Simplify right side
    375,324.56x = 147,819,608,913.48
  5. Step 5: Solve for x
    x = 147,819,608,913.48/375,324.56
  6. Step 6: Final answer
    x = 393,844.75

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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.