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Finding the Fourth Proportional to 610,861.26, 843,089.67 and 339,016.47

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Solution

The fourth proportional to 610,861.26, 843,089.67 and 339,016.47 is: 467,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,861.26 : 843,089.67 = 339,016.47 : x
  2. Step 2: Convert to fraction form
    610,861.26/843,089.67 = 339,016.47/x
  3. Step 3: Cross multiply
    610,861.26x = 843,089.67 × 339,016.47
  4. Step 4: Simplify right side
    610,861.26x = 285,821,283,816.87
  5. Step 5: Solve for x
    x = 285,821,283,816.87/610,861.26
  6. Step 6: Final answer
    x = 467,898.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.