Home / 811,085.70-1,216,628.55-706,109.70

Finding the Fourth Proportional to 811,085.70, 1,216,628.55 and 706,109.70

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Solution

The fourth proportional to 811,085.70, 1,216,628.55 and 706,109.70 is: 1,059,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,085.70 : 1,216,628.55 = 706,109.70 : x
  2. Step 2: Convert to fraction form
    811,085.70/1,216,628.55 = 706,109.70/x
  3. Step 3: Cross multiply
    811,085.70x = 1,216,628.55 × 706,109.70
  4. Step 4: Simplify right side
    811,085.70x = 859,073,220,451.94
  5. Step 5: Solve for x
    x = 859,073,220,451.94/811,085.70
  6. Step 6: Final answer
    x = 1,059,164.55

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Similar ratio
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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.