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Finding the Fourth Proportional to 395,957.38, 546,380.26 and 243,002.01

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Solution

The fourth proportional to 395,957.38, 546,380.26 and 243,002.01 is: 335,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,957.38 : 546,380.26 = 243,002.01 : x
  2. Step 2: Convert to fraction form
    395,957.38/546,380.26 = 243,002.01/x
  3. Step 3: Cross multiply
    395,957.38x = 546,380.26 × 243,002.01
  4. Step 4: Simplify right side
    395,957.38x = 132,771,501,404.32
  5. Step 5: Solve for x
    x = 132,771,501,404.32/395,957.38
  6. Step 6: Final answer
    x = 335,317.66

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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.