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Finding the Fourth Proportional to 396,119.45, 546,714.71 and 235,063.31

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Solution

The fourth proportional to 396,119.45, 546,714.71 and 235,063.31 is: 324,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,119.45 : 546,714.71 = 235,063.31 : x
  2. Step 2: Convert to fraction form
    396,119.45/546,714.71 = 235,063.31/x
  3. Step 3: Cross multiply
    396,119.45x = 546,714.71 × 235,063.31
  4. Step 4: Simplify right side
    396,119.45x = 128,512,565,449.40
  5. Step 5: Solve for x
    x = 128,512,565,449.40/396,119.45
  6. Step 6: Final answer
    x = 324,428.82

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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.