Home / 766,225.44-1,057,349.70-422,049.96

Finding the Fourth Proportional to 766,225.44, 1,057,349.70 and 422,049.96

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Solution

The fourth proportional to 766,225.44, 1,057,349.70 and 422,049.96 is: 582,406.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,225.44 : 1,057,349.70 = 422,049.96 : x
  2. Step 2: Convert to fraction form
    766,225.44/1,057,349.70 = 422,049.96/x
  3. Step 3: Cross multiply
    766,225.44x = 1,057,349.70 × 422,049.96
  4. Step 4: Simplify right side
    766,225.44x = 446,254,398,591.01
  5. Step 5: Solve for x
    x = 446,254,398,591.01/766,225.44
  6. Step 6: Final answer
    x = 582,406.14

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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.