Home / 863,045.13-1,191,512.55-767,286.75

Finding the Fourth Proportional to 863,045.13, 1,191,512.55 and 767,286.75

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Solution

The fourth proportional to 863,045.13, 1,191,512.55 and 767,286.75 is: 1,059,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,045.13 : 1,191,512.55 = 767,286.75 : x
  2. Step 2: Convert to fraction form
    863,045.13/1,191,512.55 = 767,286.75/x
  3. Step 3: Cross multiply
    863,045.13x = 1,191,512.55 × 767,286.75
  4. Step 4: Simplify right side
    863,045.13x = 914,231,792,073.71
  5. Step 5: Solve for x
    x = 914,231,792,073.71/863,045.13
  6. Step 6: Final answer
    x = 1,059,309.37

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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.