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Finding the Fourth Proportional to 482,687.90, 724,377.45 and 202,406.30

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Solution

The fourth proportional to 482,687.90, 724,377.45 and 202,406.30 is: 303,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,687.90 : 724,377.45 = 202,406.30 : x
  2. Step 2: Convert to fraction form
    482,687.90/724,377.45 = 202,406.30/x
  3. Step 3: Cross multiply
    482,687.90x = 724,377.45 × 202,406.30
  4. Step 4: Simplify right side
    482,687.90x = 146,618,559,457.94
  5. Step 5: Solve for x
    x = 146,618,559,457.94/482,687.90
  6. Step 6: Final answer
    x = 303,754.37

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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.