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Finding the Fourth Proportional to 395,959.88, 546,383.71 and 243,004.52

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Solution

The fourth proportional to 395,959.88, 546,383.71 and 243,004.52 is: 335,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,959.88 : 546,383.71 = 243,004.52 : x
  2. Step 2: Convert to fraction form
    395,959.88/546,383.71 = 243,004.52/x
  3. Step 3: Cross multiply
    395,959.88x = 546,383.71 × 243,004.52
  4. Step 4: Simplify right side
    395,959.88x = 132,773,711,184.37
  5. Step 5: Solve for x
    x = 132,773,711,184.37/395,959.88
  6. Step 6: Final answer
    x = 335,321.12

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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.