Home / 809,151.59-1,115,998.22-518,790.89

Finding the Fourth Proportional to 809,151.59, 1,115,998.22 and 518,790.89

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Solution

The fourth proportional to 809,151.59, 1,115,998.22 and 518,790.89 is: 715,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,151.59 : 1,115,998.22 = 518,790.89 : x
  2. Step 2: Convert to fraction form
    809,151.59/1,115,998.22 = 518,790.89/x
  3. Step 3: Cross multiply
    809,151.59x = 1,115,998.22 × 518,790.89
  4. Step 4: Simplify right side
    809,151.59x = 578,969,713,879.19
  5. Step 5: Solve for x
    x = 578,969,713,879.19/809,151.59
  6. Step 6: Final answer
    x = 715,526.88

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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.