Home / 855,712.45-1,284,214.30-585,194.22

Finding the Fourth Proportional to 855,712.45, 1,284,214.30 and 585,194.22

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Solution

The fourth proportional to 855,712.45, 1,284,214.30 and 585,194.22 is: 878,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,712.45 : 1,284,214.30 = 585,194.22 : x
  2. Step 2: Convert to fraction form
    855,712.45/1,284,214.30 = 585,194.22/x
  3. Step 3: Cross multiply
    855,712.45x = 1,284,214.30 × 585,194.22
  4. Step 4: Simplify right side
    855,712.45x = 751,514,784,138.36
  5. Step 5: Solve for x
    x = 751,514,784,138.36/855,712.45
  6. Step 6: Final answer
    x = 878,232.85

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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.