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Finding the Fourth Proportional to 482,090.62, 722,844.24 and 215,801.50

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Solution

The fourth proportional to 482,090.62, 722,844.24 and 215,801.50 is: 323,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,090.62 : 722,844.24 = 215,801.50 : x
  2. Step 2: Convert to fraction form
    482,090.62/722,844.24 = 215,801.50/x
  3. Step 3: Cross multiply
    482,090.62x = 722,844.24 × 215,801.50
  4. Step 4: Simplify right side
    482,090.62x = 155,990,871,258.36
  5. Step 5: Solve for x
    x = 155,990,871,258.36/482,090.62
  6. Step 6: Final answer
    x = 323,571.68

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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.