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Finding the Fourth Proportional to 468,431.02, 702,541.46 and 215,468.58

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Solution

The fourth proportional to 468,431.02, 702,541.46 and 215,468.58 is: 323,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,431.02 : 702,541.46 = 215,468.58 : x
  2. Step 2: Convert to fraction form
    468,431.02/702,541.46 = 215,468.58/x
  3. Step 3: Cross multiply
    468,431.02x = 702,541.46 × 215,468.58
  4. Step 4: Simplify right side
    468,431.02x = 151,375,610,777.33
  5. Step 5: Solve for x
    x = 151,375,610,777.33/468,431.02
  6. Step 6: Final answer
    x = 323,154.54

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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.