Home / 722,416.83-1,083,633.44-189,991.68

Finding the Fourth Proportional to 722,416.83, 1,083,633.44 and 189,991.68

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Solution

The fourth proportional to 722,416.83, 1,083,633.44 and 189,991.68 is: 284,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,416.83 : 1,083,633.44 = 189,991.68 : x
  2. Step 2: Convert to fraction form
    722,416.83/1,083,633.44 = 189,991.68/x
  3. Step 3: Cross multiply
    722,416.83x = 1,083,633.44 × 189,991.68
  4. Step 4: Simplify right side
    722,416.83x = 205,881,337,769.78
  5. Step 5: Solve for x
    x = 205,881,337,769.78/722,416.83
  6. Step 6: Final answer
    x = 284,989.68

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Double scale
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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.