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Finding the Fourth Proportional to 395,609.41, 593,507.46 and 129,368.89

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Solution

The fourth proportional to 395,609.41, 593,507.46 and 129,368.89 is: 194,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,609.41 : 593,507.46 = 129,368.89 : x
  2. Step 2: Convert to fraction form
    395,609.41/593,507.46 = 129,368.89/x
  3. Step 3: Cross multiply
    395,609.41x = 593,507.46 × 129,368.89
  4. Step 4: Simplify right side
    395,609.41x = 76,781,401,306.92
  5. Step 5: Solve for x
    x = 76,781,401,306.92/395,609.41
  6. Step 6: Final answer
    x = 194,083.86

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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.