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Finding the Fourth Proportional to 270,304.99, 405,523.61 and 190,498.67

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Solution

The fourth proportional to 270,304.99, 405,523.61 and 190,498.67 is: 285,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,304.99 : 405,523.61 = 190,498.67 : x
  2. Step 2: Convert to fraction form
    270,304.99/405,523.61 = 190,498.67/x
  3. Step 3: Cross multiply
    270,304.99x = 405,523.61 × 190,498.67
  4. Step 4: Simplify right side
    270,304.99x = 77,251,707,406.11
  5. Step 5: Solve for x
    x = 77,251,707,406.11/270,304.99
  6. Step 6: Final answer
    x = 285,794.60

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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.