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Finding the Fourth Proportional to 471,087.12, 706,362.48 and 321,508.62

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Solution

The fourth proportional to 471,087.12, 706,362.48 and 321,508.62 is: 482,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,087.12 : 706,362.48 = 321,508.62 : x
  2. Step 2: Convert to fraction form
    471,087.12/706,362.48 = 321,508.62/x
  3. Step 3: Cross multiply
    471,087.12x = 706,362.48 × 321,508.62
  4. Step 4: Simplify right side
    471,087.12x = 227,101,626,164.58
  5. Step 5: Solve for x
    x = 227,101,626,164.58/471,087.12
  6. Step 6: Final answer
    x = 482,079.89

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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.