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Finding the Fourth Proportional to 347,663.70, 521,495.52 and 189,806.04

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Solution

The fourth proportional to 347,663.70, 521,495.52 and 189,806.04 is: 284,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,663.70 : 521,495.52 = 189,806.04 : x
  2. Step 2: Convert to fraction form
    347,663.70/521,495.52 = 189,806.04/x
  3. Step 3: Cross multiply
    347,663.70x = 521,495.52 × 189,806.04
  4. Step 4: Simplify right side
    347,663.70x = 98,982,999,528.94
  5. Step 5: Solve for x
    x = 98,982,999,528.94/347,663.70
  6. Step 6: Final answer
    x = 284,709.04

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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.