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Finding the Fourth Proportional to 395,654.92, 593,575.74 and 129,414.40

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Solution

The fourth proportional to 395,654.92, 593,575.74 and 129,414.40 is: 194,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,654.92 : 593,575.74 = 129,414.40 : x
  2. Step 2: Convert to fraction form
    395,654.92/593,575.74 = 129,414.40/x
  3. Step 3: Cross multiply
    395,654.92x = 593,575.74 × 129,414.40
  4. Step 4: Simplify right side
    395,654.92x = 76,817,248,246.66
  5. Step 5: Solve for x
    x = 76,817,248,246.66/395,654.92
  6. Step 6: Final answer
    x = 194,152.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.