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Finding the Fourth Proportional to 482,668.30, 724,002.45 and 305,958.70

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Solution

The fourth proportional to 482,668.30, 724,002.45 and 305,958.70 is: 458,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,668.30 : 724,002.45 = 305,958.70 : x
  2. Step 2: Convert to fraction form
    482,668.30/724,002.45 = 305,958.70/x
  3. Step 3: Cross multiply
    482,668.30x = 724,002.45 × 305,958.70
  4. Step 4: Simplify right side
    482,668.30x = 221,514,848,398.82
  5. Step 5: Solve for x
    x = 221,514,848,398.82/482,668.30
  6. Step 6: Final answer
    x = 458,938.05

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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.