Home / 921,769.68-1,382,654.52-290,732.70

Finding the Fourth Proportional to 921,769.68, 1,382,654.52 and 290,732.70

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Solution

The fourth proportional to 921,769.68, 1,382,654.52 and 290,732.70 is: 436,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,769.68 : 1,382,654.52 = 290,732.70 : x
  2. Step 2: Convert to fraction form
    921,769.68/1,382,654.52 = 290,732.70/x
  3. Step 3: Cross multiply
    921,769.68x = 1,382,654.52 × 290,732.70
  4. Step 4: Simplify right side
    921,769.68x = 401,982,881,766.80
  5. Step 5: Solve for x
    x = 401,982,881,766.80/921,769.68
  6. Step 6: Final answer
    x = 436,099.05

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Similar ratio
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1.5x scale

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.