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Finding the Fourth Proportional to 532,456.40, 797,647.80 and 321,467.60

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Solution

The fourth proportional to 532,456.40, 797,647.80 and 321,467.60 is: 481,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,456.40 : 797,647.80 = 321,467.60 : x
  2. Step 2: Convert to fraction form
    532,456.40/797,647.80 = 321,467.60/x
  3. Step 3: Cross multiply
    532,456.40x = 797,647.80 × 321,467.60
  4. Step 4: Simplify right side
    532,456.40x = 256,417,923,911.28
  5. Step 5: Solve for x
    x = 256,417,923,911.28/532,456.40
  6. Step 6: Final answer
    x = 481,575.44

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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.