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Finding the Fourth Proportional to 585,644.80, 878,467.20 and 582,145.60

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Solution

The fourth proportional to 585,644.80, 878,467.20 and 582,145.60 is: 873,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,644.80 : 878,467.20 = 582,145.60 : x
  2. Step 2: Convert to fraction form
    585,644.80/878,467.20 = 582,145.60/x
  3. Step 3: Cross multiply
    585,644.80x = 878,467.20 × 582,145.60
  4. Step 4: Simplify right side
    585,644.80x = 511,395,815,224.32
  5. Step 5: Solve for x
    x = 511,395,815,224.32/585,644.80
  6. Step 6: Final answer
    x = 873,218.40

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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.