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Finding the Fourth Proportional to 396,316.66, 594,350.10 and 130,015.12

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Solution

The fourth proportional to 396,316.66, 594,350.10 and 130,015.12 is: 194,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,316.66 : 594,350.10 = 130,015.12 : x
  2. Step 2: Convert to fraction form
    396,316.66/594,350.10 = 130,015.12/x
  3. Step 3: Cross multiply
    396,316.66x = 594,350.10 × 130,015.12
  4. Step 4: Simplify right side
    396,316.66x = 77,274,499,573.51
  5. Step 5: Solve for x
    x = 77,274,499,573.51/396,316.66
  6. Step 6: Final answer
    x = 194,981.71

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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.