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Finding the Fourth Proportional to 339,669.44, 469,223.52 and 272,134.88

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Solution

The fourth proportional to 339,669.44, 469,223.52 and 272,134.88 is: 375,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,669.44 : 469,223.52 = 272,134.88 : x
  2. Step 2: Convert to fraction form
    339,669.44/469,223.52 = 272,134.88/x
  3. Step 3: Cross multiply
    339,669.44x = 469,223.52 × 272,134.88
  4. Step 4: Simplify right side
    339,669.44x = 127,692,086,308.38
  5. Step 5: Solve for x
    x = 127,692,086,308.38/339,669.44
  6. Step 6: Final answer
    x = 375,930.45

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1.5x scale

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.