Home / 811,086.90-1,214,079.39-556,879.74

Finding the Fourth Proportional to 811,086.90, 1,214,079.39 and 556,879.74

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Solution

The fourth proportional to 811,086.90, 1,214,079.39 and 556,879.74 is: 833,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,086.90 : 1,214,079.39 = 556,879.74 : x
  2. Step 2: Convert to fraction form
    811,086.90/1,214,079.39 = 556,879.74/x
  3. Step 3: Cross multiply
    811,086.90x = 1,214,079.39 × 556,879.74
  4. Step 4: Simplify right side
    811,086.90x = 676,096,215,042.56
  5. Step 5: Solve for x
    x = 676,096,215,042.56/811,086.90
  6. Step 6: Final answer
    x = 833,568.16

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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.