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Finding the Fourth Proportional to 396,161.88, 546,710.86 and 243,123.52

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Solution

The fourth proportional to 396,161.88, 546,710.86 and 243,123.52 is: 335,515.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,161.88 : 546,710.86 = 243,123.52 : x
  2. Step 2: Convert to fraction form
    396,161.88/546,710.86 = 243,123.52/x
  3. Step 3: Cross multiply
    396,161.88x = 546,710.86 × 243,123.52
  4. Step 4: Simplify right side
    396,161.88x = 132,918,268,705.43
  5. Step 5: Solve for x
    x = 132,918,268,705.43/396,161.88
  6. Step 6: Final answer
    x = 335,515.04

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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.