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Finding the Fourth Proportional to 396,243.68, 546,814.44 and 214,955.72

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Solution

The fourth proportional to 396,243.68, 546,814.44 and 214,955.72 is: 296,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,243.68 : 546,814.44 = 214,955.72 : x
  2. Step 2: Convert to fraction form
    396,243.68/546,814.44 = 214,955.72/x
  3. Step 3: Cross multiply
    396,243.68x = 546,814.44 × 214,955.72
  4. Step 4: Simplify right side
    396,243.68x = 117,540,891,656.60
  5. Step 5: Solve for x
    x = 117,540,891,656.60/396,243.68
  6. Step 6: Final answer
    x = 296,637.90

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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.