Home / 812,759.58-1,122,150.72-506,958.66

Finding the Fourth Proportional to 812,759.58, 1,122,150.72 and 506,958.66

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Solution

The fourth proportional to 812,759.58, 1,122,150.72 and 506,958.66 is: 699,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,759.58 : 1,122,150.72 = 506,958.66 : x
  2. Step 2: Convert to fraction form
    812,759.58/1,122,150.72 = 506,958.66/x
  3. Step 3: Cross multiply
    812,759.58x = 1,122,150.72 × 506,958.66
  4. Step 4: Simplify right side
    812,759.58x = 568,884,025,329.24
  5. Step 5: Solve for x
    x = 568,884,025,329.24/812,759.58
  6. Step 6: Final answer
    x = 699,941.33

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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.