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Finding the Fourth Proportional to 396,070.30, 593,121.30 and 317,338.30

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Solution

The fourth proportional to 396,070.30, 593,121.30 and 317,338.30 is: 475,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,070.30 : 593,121.30 = 317,338.30 : x
  2. Step 2: Convert to fraction form
    396,070.30/593,121.30 = 317,338.30/x
  3. Step 3: Cross multiply
    396,070.30x = 593,121.30 × 317,338.30
  4. Step 4: Simplify right side
    396,070.30x = 188,220,105,035.79
  5. Step 5: Solve for x
    x = 188,220,105,035.79/396,070.30
  6. Step 6: Final answer
    x = 475,218.93

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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.