Home / 812,716.71-1,121,560.92-468,546.72

Finding the Fourth Proportional to 812,716.71, 1,121,560.92 and 468,546.72

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Solution

The fourth proportional to 812,716.71, 1,121,560.92 and 468,546.72 is: 646,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,716.71 : 1,121,560.92 = 468,546.72 : x
  2. Step 2: Convert to fraction form
    812,716.71/1,121,560.92 = 468,546.72/x
  3. Step 3: Cross multiply
    812,716.71x = 1,121,560.92 × 468,546.72
  4. Step 4: Simplify right side
    812,716.71x = 525,503,690,346.18
  5. Step 5: Solve for x
    x = 525,503,690,346.18/812,716.71
  6. Step 6: Final answer
    x = 646,601.31

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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.