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Finding the Fourth Proportional to 395,697.36, 546,036.54 and 252,442.04

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Solution

The fourth proportional to 395,697.36, 546,036.54 and 252,442.04 is: 348,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,697.36 : 546,036.54 = 252,442.04 : x
  2. Step 2: Convert to fraction form
    395,697.36/546,036.54 = 252,442.04/x
  3. Step 3: Cross multiply
    395,697.36x = 546,036.54 × 252,442.04
  4. Step 4: Simplify right side
    395,697.36x = 137,842,578,072.14
  5. Step 5: Solve for x
    x = 137,842,578,072.14/395,697.36
  6. Step 6: Final answer
    x = 348,353.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.