Home / 812,194.74-1,216,960.47-575,111.79

Finding the Fourth Proportional to 812,194.74, 1,216,960.47 and 575,111.79

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Solution

The fourth proportional to 812,194.74, 1,216,960.47 and 575,111.79 is: 861,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,194.74 : 1,216,960.47 = 575,111.79 : x
  2. Step 2: Convert to fraction form
    812,194.74/1,216,960.47 = 575,111.79/x
  3. Step 3: Cross multiply
    812,194.74x = 1,216,960.47 × 575,111.79
  4. Step 4: Simplify right side
    812,194.74x = 699,888,314,260.94
  5. Step 5: Solve for x
    x = 699,888,314,260.94/812,194.74
  6. Step 6: Final answer
    x = 861,724.76

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Double scale
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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.