Home / 838,416.24-1,157,165.31-494,231.65

Finding the Fourth Proportional to 838,416.24, 1,157,165.31 and 494,231.65

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Solution

The fourth proportional to 838,416.24, 1,157,165.31 and 494,231.65 is: 682,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,416.24 : 1,157,165.31 = 494,231.65 : x
  2. Step 2: Convert to fraction form
    838,416.24/1,157,165.31 = 494,231.65/x
  3. Step 3: Cross multiply
    838,416.24x = 1,157,165.31 × 494,231.65
  4. Step 4: Simplify right side
    838,416.24x = 571,907,720,484.06
  5. Step 5: Solve for x
    x = 571,907,720,484.06/838,416.24
  6. Step 6: Final answer
    x = 682,128.63

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Double scale
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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.