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Finding the Fourth Proportional to 826,990.56, 1,141,182 and 469,294.56

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Solution

The fourth proportional to 826,990.56, 1,141,182 and 469,294.56 is: 647,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,990.56 : 1,141,182 = 469,294.56 : x
  2. Step 2: Convert to fraction form
    826,990.56/1,141,182 = 469,294.56/x
  3. Step 3: Cross multiply
    826,990.56x = 1,141,182 × 469,294.56
  4. Step 4: Simplify right side
    826,990.56x = 535,550,504,569.92
  5. Step 5: Solve for x
    x = 535,550,504,569.92/826,990.56
  6. Step 6: Final answer
    x = 647,589.62

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Similar ratio
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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.