Home / 826,405.90-1,239,608.85-293,944.30

Finding the Fourth Proportional to 826,405.90, 1,239,608.85 and 293,944.30

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Solution

The fourth proportional to 826,405.90, 1,239,608.85 and 293,944.30 is: 440,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,405.90 : 1,239,608.85 = 293,944.30 : x
  2. Step 2: Convert to fraction form
    826,405.90/1,239,608.85 = 293,944.30/x
  3. Step 3: Cross multiply
    826,405.90x = 1,239,608.85 × 293,944.30
  4. Step 4: Simplify right side
    826,405.90x = 364,375,955,687.06
  5. Step 5: Solve for x
    x = 364,375,955,687.06/826,405.90
  6. Step 6: Final answer
    x = 440,916.45

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Double scale
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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.