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Finding the Fourth Proportional to 611,233.29, 843,505.25 and 339,296.85

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Solution

The fourth proportional to 611,233.29, 843,505.25 and 339,296.85 is: 468,231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,233.29 : 843,505.25 = 339,296.85 : x
  2. Step 2: Convert to fraction form
    611,233.29/843,505.25 = 339,296.85/x
  3. Step 3: Cross multiply
    611,233.29x = 843,505.25 × 339,296.85
  4. Step 4: Simplify right side
    611,233.29x = 286,198,672,586.98
  5. Step 5: Solve for x
    x = 286,198,672,586.98/611,233.29
  6. Step 6: Final answer
    x = 468,231.49

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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.