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Finding the Fourth Proportional to 482,668.35, 724,004.95 and 198,513.87

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Solution

The fourth proportional to 482,668.35, 724,004.95 and 198,513.87 is: 297,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,668.35 : 724,004.95 = 198,513.87 : x
  2. Step 2: Convert to fraction form
    482,668.35/724,004.95 = 198,513.87/x
  3. Step 3: Cross multiply
    482,668.35x = 724,004.95 × 198,513.87
  4. Step 4: Simplify right side
    482,668.35x = 143,725,024,523.66
  5. Step 5: Solve for x
    x = 143,725,024,523.66/482,668.35
  6. Step 6: Final answer
    x = 297,771.80

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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.