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Finding the Fourth Proportional to 447,987.16, 671,642.82 and 270,451.96

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Solution

The fourth proportional to 447,987.16, 671,642.82 and 270,451.96 is: 405,473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,987.16 : 671,642.82 = 270,451.96 : x
  2. Step 2: Convert to fraction form
    447,987.16/671,642.82 = 270,451.96/x
  3. Step 3: Cross multiply
    447,987.16x = 671,642.82 × 270,451.96
  4. Step 4: Simplify right side
    447,987.16x = 181,647,117,088.93
  5. Step 5: Solve for x
    x = 181,647,117,088.93/447,987.16
  6. Step 6: Final answer
    x = 405,473.94

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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.