Home / 813,863.58-1,123,145.21-451,302.72

Finding the Fourth Proportional to 813,863.58, 1,123,145.21 and 451,302.72

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Solution

The fourth proportional to 813,863.58, 1,123,145.21 and 451,302.72 is: 622,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,863.58 : 1,123,145.21 = 451,302.72 : x
  2. Step 2: Convert to fraction form
    813,863.58/1,123,145.21 = 451,302.72/x
  3. Step 3: Cross multiply
    813,863.58x = 1,123,145.21 × 451,302.72
  4. Step 4: Simplify right side
    813,863.58x = 506,878,488,227.97
  5. Step 5: Solve for x
    x = 506,878,488,227.97/813,863.58
  6. Step 6: Final answer
    x = 622,805.22

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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.